Steps to reproduce

• Use direct debit as payment method
• Enter NL18ABNA0484869868 into the IBAN field

Expected behaviour

• IBAN validation passes

Actual behaviour

• IBAN validation fails

Notes

• When entering the value, validation fails at the fifth position of the example (the first letter that is not part of the country code).
• The IBAN is an IBAN example that is blacklisted on the production server.