Public recipient_Help immediately

Fnb App_This is Sheldon, I have made a payment to my Jet account using Fnb App which did not allow me to enter in bank details rather forced me to use the Public Recipient for Jet, I received my statement from Jet and they have not received my payment and are sending me requests for payment advising they will be charging me interest for late payment, this is ridiculous and I want this rectified immediately.

The proof of payment does not have the correct bank details for payment for Jet, I need help immediately.