See how BMO merchant services and card payment processing can help you increase sales, maximize cash flow, improve security, and manage costs. Sample Business Contracts.Merchant Services Agreement - Harris Trust and Savings Bank, uDate. Merchant shall mail to the Cardholder a Transaction receipt for cancellations within 3 days of the Transaction date. The most reliable way to cancel a CPA is to simply replace your card all future authorizations will then decline. Notifying us that the authority for an Authorized. The applicant should sign the copy in front of a notary and have the signed paper notarized. Below are all the essentials – what you need to know about payment processing, from the overall payments environment through to understanding rates and fees. List of Participating Merchants. MasterCard Automatic Billing Updater.