patch https://api.test.payadvantage.com.au/v3/customer_payment_accounts/
Customer payment accounts are designed to help store a reference to a payment type in Pay Advantage.
You can then use the code (when the type is credit card) to charge the account for that payment type.
A customer payment account code could refer to a credit card payment account or bsb and account number payment account.
Updates a customer payment account.