Worst customer experience with Nedbank Credit Card

I am very angry and disappointed with how Nedbank has handled my case this far. On the 31st of March 2022, I unintentionally paid R5000 into the Nedbank Mortgage Department instead of Nedbank Credit Card. I called Nedbank Credit Card to ask them to assist me with tranfering the funds back to the correct account, the first consultant I spoke to told me that the process should take two working days. Nedbank Credit Card has been sending me from pillar to post almost everyday since the 31st of March, it's been two full months and nothing has been done about my request. Everytime I call I am asked to send the proof of payment then nothing is done, just to call again the next day to have a different consultant say the same thing, I don't even know how many times I have sent this proof of payment to different Nedbank consultants. I have received SMSes telling me that my Nedbank credit card account is in arrears, yet Nedbank is doing nothing to transfer my money to the correct account because I don't even have a home loan with Nedbank. Now my credit record will reflect a skipped payment because Nedbank has failed to assist me in this matter. This is the worst customer experience, so this means Nedbank will just keep my R5000 allocated to a home loan that is non-existent. This is unacceptable!!!