Send an email to chargemit-help@mit.edu with the merchant’s name, merchant’s account number, and the financial account you want the revenue to be deposited to.
The credit card authorization puts a hold on the cardholders funds until you process the settlement. The authorization will expire automatically with the card issuer typically within 7-10 days depending on the issuer's policy. Cardholders do not see a "charge" on their account; they are likely looking at an online banking statement and they see the amount has been moved from their available balance and that the transactions is pending, but the funds themselves are not removed from the customer's account.
To reverse an authorization before it expires:
* The cardholder should contact the card-issuing bank by phone. If you provide the card-issuer the authorization code, the card-issuer may be able to release it.
* You would need to work with your Merchant Bank Representative or the customer to gain the card-issuing bank's contact information. The 800 number on the back of the card should suffice. Please note that the customer will first need to give his/her bank approval to speak with you.
* Not all card issuers will pre-release the authorizations. Each card-issuer has its own policy on authorization reversals. This is why authorization reversals are not an automated process and we cannot guarantee the success of the authorization reversal.