Worst customer service

This has to be the worst customer service I've ever experienced. On the 14th of February i paid my account an amount of R600 at Springs mall Mr Price home. About a week later i paid R400 into the account. Later when i check my transactions on the app the R600 i paid before did not appear. I called head office... after holding for more than 20 minutes i was told the payment doesnt appear on the system they cant help. On the 26th i went back to the store, they checked on their records and found the payment. They called head office and they also confirmed the payment. They told me they have sent a request to the accounts department to update my account. They said the payment will appear in my transactions within 24 hours. Its been 5 days but still nothing. As a result my account is in arrears. I tried calling the head office but they keep me on hold until the call cuts off. I tried the watsapp line... their agent only introduced herself as Yvonne, after i wrote my query she disappeared without a response.