Not crediting my account

I paid an amount from Standard Bank to my Discovery card on Dec 3. To date still not credited to my account. I have phoned , sent 3 mails, received electronic confirmation of my mail, not a single response. On Friday , after another call, They confirmed that there is this amount in their suspense account. The details of my account are correct on my payment. The call centre refuses to give me any Discovery management contact details. ***ARDS ! I have reported to Banking Ombudsman. Do they deserve a banking license?