Bad customer service

FNB does not respect their customers, on the 14th of March 2022, I bought a battery charger and I didn't have my wallet with me so I used the facility scan to pay on the FNB app. Money was deducted on my account but it didn't reflect on the customer side, I tried again on another speed point same thing happened. I immediately call FNB call centre advising them aboyt what had just happen, they gave me a form to reverse the payment, so I filled the form and send it back on the same day, I waited for over a month and nothing happened my money was not reversed, on the 20th of April 2022 I called the call centre again and I was told that I was supposed to keep resending the email until I get an email acknowledging my email. I was told to do the same again on the 20th April which I did kept on sending the email untill I received the email of acknowledgement, I was told a consultant from FNB will call me but its more than 2weeks now n no one has called, clearly they're not going to call or rather reverse that payment which was an error on their side n I had to pay double for their mistake. FNB really doesn't respect their customers and its really annoying, terrible customer service