Poor customer service and follow up

I had made an error payment to dstv on the 24th February 2023, I immediately contacted them to request a refund and I was told telephonically that they submitted my request and refund will be made within 7 working days, after seven days had lapsed, I contacted multichoice again and only to be informed that my request was not processed because I did not submit the required documents for refund to be processed off which i was not informed of on my initial call. I submitted the documents and was told it will take another 7-14 working days, i was supposed to have received my money back on the 17th of March 2023. Only to call multichoice again and was told my claim wasn’t processed after I had sent proof of payment, copy of ID and bank statement as requested. Until today April the 18th, i’m still being told the same things and no refund. I’ve been going back and forth with them for 3 months and no one seems to care, their customer service is beyond pathetic because they don’t care about their customers. I’ve had enough of their lies and untruths, though I have emails to prove how exhausted I am with all of this.