Support for Generating PAIN Format to Cancel Recurring Payments (Customer Payment Reversal)

[benjaminbarbe10]

Issue Description:

The current version of the jSEPA library lacks functionality for generating a PAIN XML format that can handle the cancellation of recurring payments. Specifically, the library does not support generating pain.007.001.02 messages, which are required to reverse settled SEPA Direct Debit transactions.

Expected Outcome:

Would be nice to add a feature to support the generation of pain.007.001.02 messages for cancelling or reversing recurring payments. This will allow users to initiate a reversal of settled direct debit transactions in line with SEPA guidelines.

Additional Reference:

The pain.007.001.02 Customer Payment Reversal V02 message format is well-documented in SEPA standards, and more information can be found in the corresponding MIG (Message Implementation Guideline).
https://www.nordea.com/en/doc/mig-pain.007.001.02customerpaymentreversalv.1.0.pdf

Thank you for your consideration!
With some guideline, I could also do some implementation, let me know? I also just saw a milestone for V2, any help needed?

thanks for your work here :)