FNB WONT REFUND ME

I am an FNB account holder for a few years now, and I really love banking with FNB, I'm always recommending people join FNB instead of other banks, however today that is not the case, as a matter of fact, it is not the month for that as FNB has *****ed me over big time.

I have a personal loan account with FNB, a payment was made accidentally into my personal loan account instead of my Cheque Account. I called FNB immediately to rectify this issue, however, I still have no been refunded, I have spent over R200 in airtime on multiple calls to the call centre and I keep being told it will take 5 - 7 working days. Timeline of events below;

27/05/2021 - payment made into personal loan account incorrectly 28/05/2021 - the first contact with FNB call centre logging the issue, requesting a refund, I was told it would take 3 - 5 working days to be processed. 07/06/2021 - the second contact with FNB call centre enquiring why I have not yet been refunded as 5 working days as passed, agent escalates refund request, agent says it can now take up to 9 days to refund me? 09/06/2021 - the third contact with FNB call centre, still have no been refunded, agent escalates refund request again also notes the previous escalation. Agent says it can 3 - 5 working days to refund me (again). I enquire why the other agent gave me different information and I request a copy of all calls I've had with the call centre up until now with this issue. The agent then goes on to argue with me that I CANNOT get the recordings, after back and forth arguing he eventually says he will send a request for my call recordings. 09/06/2021 - FNB calls me requesting proof of payment for the refund to be processed, AT NO POINT BEFORE THIS WAS PROOF OF PAYMENT REQUESTED NOR MENTIONED BY ANY OF THE PREVIOUS AGENTS. I enquire how long this will take to be processed as I have been waiting 8 working days in total, again I am told this will take 3 - 5 working days. 17/06/2021 - the fourth contact with FNB call centre, agent notes all the previous escalations, says it was supposed to have been processed on the 9th already but is not able to tell me why I have not yet been refunded, escalates the issue yet again and promises to keep me updated via email. 18/06/2021 - 15 working days I have been waiting to be refunded, I have made at least 17 calls spent about 2hrs in total on calls just to resolve this issue and up until now, No refund, No communication, No recordings, NOTHING FROM FNB.