Bad service with refunds an Takealot

I bought a tablet from Takealot on 20 September 2024. I was not happy with the product and return it on the 23rd September 2024. I asked for a refund but it ended up in a credit. I asked them to refund my money. They first told me they can't refund me because I paid with a credit card. They can only refund cheque accounts and then via savings accounts. So I provide them with a cheque account and a savings account details. 8-emails later and I still do not have my promised refund. They are *********** of handling refunds. It is the 15th October 2024 and I still don't have my refund after many emails of providing bank details and promises of refund being processed between 3-5 working days. What to do if in this situation if a provider do not stick to the promises they make to costumers