## PAYMENT_IBAN

You must identify the IBAN number of the bank account that is expected to receive the payment.

Look for all payment instructions and check if a single or main IBAN is mentioned.

If an IBAN is identified, use the setStringIdentification function to complete the task.
Provide the iban without any space or formatting ([A-Z0-9]+).

Otherwise, use the setFieldProblematic function to complete the task,
using "ABSENT" as problem type, and providing a description if applicable.

- [x] Function: setStringIdentification
- [x] Function: setFieldProblematic
- [x] Active