Ensure end to end support for global payments

All operations work perfectly except void.
I get an error message:

Client error: `POST https://api.global-sandbox.affirm.com/api/v1/transactions/TRANSACTION_ID...` resulted in a `400 Bad Request` response: @"status_code": 400, "type": "invalid_request", "message": "Please correct form errors."

The transaction is in an authorized state on both Drupal and Affirm. Also, I'm not sure if it worked with the Charge API.
Contacted support for more details about the error, it could also be related to account settings.

Added a fix for the Void operation and now everything works as expected.

Automatically closed - issue fixed for 2 weeks with no activity.