Credit Intel a bunch of *******

On the 26th of September I paid an amount of R500 into the banking account of Credit Intel. I called and it was confirmed that the payment was received and that they will refund my R500 by the 5th of October 2022 and I was advised to send the proof of payment as well as my proof of banking details which I did on the 28th of September. To date I have received no refund and instead I am being sent from pillar to post. Yes the error was my fault however Credit Intel has a R500 in their bank account which they confirmed should not be there. Please refund my R500.