Pick n Pay Smarthopper card conversion to a Credit Card has failed with no solution from Pick n Pay

During April 2024 I received a call from Pick n Pay asking if I would be interested in converting my Smartshopper card into a Credit Card. My Smartshopper card was converted into a Credit Card. Unfortunately the card is declined when presented for payment at a Pick n Pay Store. Reason being wrong pin. I have been trying to rectify the problem but unfortunately Pick n Pay cannot solve the problem. Various reasons are given. The latest reason was that there is a conflict between the Smartshopper card and my TymeBank account.