Bad service

On the 20th of August I had made an online purchase with my credit card, the shop I was buying did not not receive my payment. They advised me to initiate a charge back from my bank I did just that. On the 31 Aug 2021 I initiated dispute with my bank nedbank, i was to told uthe process takes up to 45 days, today its exactly 50days with out my money. I have tried to make follow up with Nedbank but with no luck. Their service is so poor, I tried their call centre they are not being helpful even tried with the branch that I initiated my dispute which is Mthatha cdb still with no luck. I really need my money back.