CREDIT SUPPORT ANNEX between WRIGHT EXPRESS CORPORATION (PARTY A) and BANK OF MONTREAL (PARTY B) dated July 8, 2010

Exhibit 10.70

CREDIT SUPPORT ANNEX

between

WRIGHT EXPRESS CORPORATION (“PARTY A”)

and

BANK OF MONTREAL (“PARTY B”)

dated July 8, 2010

Paragraph 13. Elections and Variables

“Delivery Amount” has the meaning specified in Paragraph 3(a).

“Return Amount” has the meaning specified in Paragraph 3(b).

“Credit Support Amount” means the amount determined by application of the formula set out in Paragraph 3.

Party A: Letter of Credit as defined in Paragraph 13(k).

Valuation Percentage: 100% of the amount drawable under such Letter of Credit unless (i) a Letter of Credit Default as defined in Paragraph 13(k) shall have occurred with respect to such Letter of Credit, or (ii) twenty or fewer Business Days remain prior to the expiration of such Letter of Credit, in either of which cases the Valuation Percentage shall be zero.

“Independent Amount” means:

With respect to Party A: zero unless otherwise specified in a Confirmation.

With respect to Party B: zero unless otherwise specified in a Confirmation.

“Threshold” means with respect to Party A $6,000,000 and with respect to Party B $30,000,000; provided however, that if an Event of Default has occurred and is continuing with respect to a party, such party’s Threshold shall be U.S. $0.

“Minimum Transfer Amount”. With respect to each party, $250,000; provided, however, that if an Event of Default has occurred and is continuing with respect to a party, such party’s Minimum Transfer Amount shall be $0.

“Rounding”. The Delivery Amount will be rounded up and the Return Amount will be rounded down to the nearest integral multiple of $100,000.

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Each Termination Event listed below will be a “Specified Condition” for Party A and Party B where such party is the Affected Party:

Illegality

Credit Event Upon Merger

Force Majeure Event

For the avoidance of doubt, the parties hereby agree that if no Early Termination Date has been designated, or if a Termination Event affects less than all Transactions hereunder, the parties shall continue to be subject to the terms hereof with respect to all Transactions (other than, with respect to Illegality, the Affected Transaction(s)).

an amount equal to the average of the mid-market quotes provided on such date by two or more recognized dealers selected in good faith by the Valuation Agent or, if no such quotes are available on such date, the average of the mid-market quotes as of the day next preceding such date on which such quotes were available, multiplied by the applicable Valuation Percentage.

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Party A and its Custodian will be entitled to hold Posted Collateral pursuant to Paragraph 6(b); provided that the following conditions applicable to it are satisfied:

Initially, the Custodian for Party A is:

Such entity as Party A shall indicate at the time of a request for a transfer of Eligible Collateral to Party A.

Party B and its Custodian will be entitled to hold Posted Collateral pursuant to Paragraph 6(b); provided that the following conditions applicable to it are satisfied:

Initially, the Custodian for Party B is Harris N.A. with respect to all Posted Collateral, other than Cash.

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Other Eligible Support and Other Posted Support provided in the form of a Letter of Credit shall be subject to the following provisions:

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“Credit Rating” shall mean, with respect to a party or entity on any date of determination, the respective rating then assigned to its unsecured and senior long-term debt or deposit obligations (not supported by third party credit enhancement) by S & P, Moody’s or another rating agency specified jointly by the parties in writing.

“Letter of Credit” shall mean an irrevocable, transferable, standby letter of credit in the form set out in Schedule A hereto, issued by a major U.S. commercial bank or a U.S. branch office of a foreign bank and with a Credit Rating of at least “A+” by S & P or “A1” by Moody’s.

“Letter of Credit Default” shall mean with respect to an outstanding Letter of Credit, the occurrence of any of the following events: (i) the issuer of such Letter of Credit shall fail to maintain a Credit Rating of at least “A” by S & P or “A2” by Moody’s; (ii) the issuer of the Letter of Credit shall fail to comply with or perform its obligations under such Letter of Credit if such failure shall be continuing after the lapse of any applicable grace period; (iii) the issuer of such Letter of Credit shall disaffirm, disclaim, repudiate or reject, in whole or in part, or challenge the validity of, such Letter of Credit; (iv) such Letter of Credit shall expire or terminate, or shall fail or cease to be in full force and effect at any time during the term of the Agreement; or (v) any event analogous to an event specified in Section 5(a)(vii) of this Agreement shall occur with respect to the issuer of such Letter of Credit; provided, however, that no Letter of Credit Default shall occur in any event with respect to a Letter of Credit after the time such Letter of Credit is required to be cancelled or returned to the Pledgor in accordance with the terms of this Annex.

“Moody’s” shall mean Moody’s Investors Service, Inc., or its successor.

“S & P” shall mean the Standard & Poor’s Ratings Group (a division of McGraw-Hill, Inc.) or its successor.

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All demands, specifications and notices under this Annex will be made pursuant to the Notices Section of this Agreement except to the extent otherwise specified here:

With respect to Party A:

With respect to Party B:

All demands, specifications and notices, except for notices pursuant to Paragraphs 7 and 8 of this Annex, shall be sent to:

Party A: to be specified in each notice.

Party B: to be specified in each notice.

“(e) Cash Collateral.

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“(B) calculating the Exposure for the Transactions in dispute by seeking four actual quotations at mid-market from third parties for purposes of calculating the relevant Close-out Amount, and taking the arithmetic average of those obtained; provided that, if four quotations are not available for a particular Transaction, then fewer than four quotations may be used for that Transaction, and if no quotations are available for a particular Transaction, then the Valuation Agent’s original calculations will be used for the Transaction; and”.

“Exposure” means for any Valuation date or other date for which Exposure is calculated and subject to Paragraph 5 in the case of a dispute, the amount, if any, that would be payable to a party that is the Secured Party by the other party (expressed as a positive number) or by a party that is the Secured Party to the other party (expressed as a negative number) pursuant to Section 6(e)(ii)(1) of this Agreement if all Transactions were being terminated as of the relevant Valuation Time, on the basis that (i) that party is not the Affected Party and (ii) United States Dollars is the Termination Currency; provided that the Close-out Amount will be determined by the Valuation Agent on behalf of that party using its

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estimates at mid-market of the amounts that would be paid for transactions providing the economic equivalent of (x) the material terms of the Transactions, including the payments and deliveries by the parties under Section 2(a)(i) in respect of the Transactions that would, but for the occurrence of the relevant Early Termination Date, have been required after that date (assuming satisfaction of the conditions precedent in Section 2(a)(iii)); and (y) the option rights of the parties in respect of the Transactions.”

““Set-off” means set-off, offset, combination of accounts, right of retention or withholding or similar right or requirement (whether arising under this Agreement, another contract, applicable law or otherwise) and, when used as a verb, the exercise of any such right or the imposition of any such requirement.”

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IN WITNESS WHEREOF, the parties have executed this ISDA Credit Support Annex by their duly authorized officers as of the date of the Agreement.

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Schedule A

IRREVOCABLE STANDBY LETTER OF CREDIT

BENEFICIARY:        BANK OF MONTREAL

We hereby issue in your favour our irrevocable standby letter of credit number [insert] (the “Letter of Credit”) for the account of [full legal name of counterparty] (the “Counterparty”) with an issue date of [insert date] for an amount not to exceed [insert amount and type of currency] available by your simple demand in writing [or by SWIFT] quoting our reference number [insert] and certifying that the amount of your drawing represents and covers indebtedness owing from the Counterparty in connection with an ISDA Master Agreement between Bank of Montreal and the Counterparty dated as of [insert date] (the “Master Agreement”).

We hereby undertake that all drawings made in compliance with the terms of this Letter of Credit shall be honoured immediately upon receipt of your demand.

This Letter of Credit shall expire on [insert date of expiry], but shall automatically extend without amendment for additional [insert number of days for extension] – day periods from such expiration date and from subsequent expiration dates, if you , as beneficiary, and the Counterparty have not received due notice of our intention not to renew ninety (90) days prior to any such expiration date. Upon receipt by you of such notice you may draw hereunder by means of your written demand for payment.

Facsimile [and SWIFT] claims are permitted.

Partial drawings are permitted.

This Letter of Credit is transferable by you in its entirety to any transferee whom you certify to us as having succeeded to your rights and obligations under the Master Agreement. This Letter of Credit is not transferable by us without your prior written consent and any transfer by us without your prior written consent shall be void.

Failure to make a drawing for any payment under this Letter of Credit shall not result in this Letter of Credit ceasing to be available for future drawings.

In the event of an act of God, riot, civil commotion, insurrection, war, strike, lockout or any other cause beyond our control which interrupts our business (collectively, an “Interruption Event”), our obligations under this Letter of Credit will merely be suspended until such time as the Interruption Event has ended, regardless of whether this Letter of Credit would have expired during the continuance of such Interruption Event. If an Interruption Event occurs which suspends our obligations to you under this Letter of Credit and this Letter of Credit would have expired during the continuance of such Interruption Event, then our obligations to you under this Letter of Credit shall continue until the passing of a number of days, after the cessation of such Interruption Event, equal to the number of days that such Interruption Event existed. In addition, we will make a good-faith effort to perform our obligations hereunder during the continuance of an Interruption Event.

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This Letter of Credit may not be amended, changed or modified without the express written consent of you or your transferee, us and the Counterparty.

Drawn amounts under this Letter of Credit will be automatically reinstated when and to the extent that the undersigned is reimbursed for any such amount drawn hereunder.

Notices, including claims, concerning this Letter of Credit may be sent to a party by courier, certified mail, registered mail, telegram [, SWIFT] or facsimile to its respective address set out below or such other address as may hereafter be furnished by such party to the other parties by like notice. All such notices and communications shall be effective when actually received by the intended recipient party.

If to the beneficiary of this Letter of Credit, to:

Bank of Montreal

[address, [SWIFT ID] and fax no.]

Attention:

If to the Counterparty, to:

[full legal name of Counterparty]

[address, [SWIFT ID] and fax no.]

Attention:

If to the undersigned, to:

[full legal name]

[address, [SWIFT ID] and fax no.]

Attention:

This Letter of Credit is subject to the Uniform Customs and Practices for Documentary Credits, 1993 Revision, International Chamber of Commerce, Paris, France, Publication No. 500 (the “UCP”) except to the extent that the provisions thereof, including but not limited to Articles 13(b) and 17 of the UCP, are inconsistent with the provisions of this Letter of Credit in which case the terms of this Letter of Credit shall govern. This Letter of Credit shall be governed and construed in accordance with the laws of New York (without reference to choice of law doctrine) as to matters which are not governed by the UCP.

Executed this    day of            ,        

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