Advance payment to credit card program vendor

Summary

Need a method of creating a prepayment or advance with a credit card program vendor

Content

Business is running a credit card program. Setups include the vendor set up as a party type vendor (no vendor profile) that payment requests are generated for when credit card transactions are loaded. This vendor cannot be used to create prepayment invoices in AP.
Business scenario is: credit card expenses in total are approaching credit limit of business with vendor of credit card program and vendor has requested an advanced payment.  

Need a method to create the payment to the vendor, and then allocate to expense payment requests at a later date when the credit card transaction file is received and expenses are processed.