Agency Code for all Credit Card Receivable. 12. You may write a letter to your financial account representative or file paperwork provided on the credit card's website.GADX5, State of Maryland Expense Account Form in the Forms section should be used. We are offering a contract to hire position as an Accounts Receivable Clerk in BALTIMORE, Maryland. Setup Account Guidelines. Sign and submit the Credit Card Agreement upon receipt of card. Must be entered in a revenue collection or other Accounts Receivable system. Review all of the job details and apply today! A credit card statement cannot be submitted in the place of a receipt. It can only be provided as backup and additional proof of payment.