Check out this Pen I made!
I have an EIN and a DUNS. I am offering services for you to get transaction services. 2.5% transaction fee, and $1.50 batch fee (150 max transactions, no amount per transaction limit}

KYC (Know Your Customer), If they are giving you their credit card number, they will give you their name and address in the form.

You are responsible for fraud claims and the proper form limits your liabilities. I have a franchise agreement also.