Very bad service at Afrox.

After receiving the incorrect size parts from the Pretoria West branch, I returned it the next day. They informed me the size I need is out of stock. A credit note was issued on the 21st August 2020. I supp**** all required documents regarding banking details etc. Up to date the credit has still not been paid back to me. Nobody seems to be able to give me any answer as to when I will have my money back.