Non-refund

On the 14th of November 2022 I bought a product on Microsoft Store,which was R959,96. 6 days later, on the 20th of November, Microsoft Store charged me once again (R959,96) for the same product. I went to Absa on the 22nd of November to ask them to fix the issue, but they didn't, instead 2 days later, on the 24th Microsoft Store charged me once again for the one product I had already been charged twice for. At this point I was being charged 3 times for a single product. I went to Absa again to fix this issue, they returned 2 of the 3 amounts and I asked for a refund on the Microsoft Store, then afterwards Absa issued me a new card. With the new card, I tried purchasing the same product again, because i needed it. Microsoft Store charged me twice that same product, this time I sent an email to Absa to get it fixed and they rep****,"For security purposes, only the cardholder or a person with general power of attorney is authorised to perform actions on the account. We are unable to verify you with the information you provided. To enable us to help you, please provide us with one of the following:...". To this day they still haven't returned the last amount that is outstanding.