Bad service and my payment not reflecting

I have been having difficulties with Game store. Last month 25 June i made payment of R1000 using the Game application installed in my phone. Yet i received messages that i have not paid and my account is in arrears. I made effort contacting the customer service center to find out what the issue is or if they have made mistake. I was then told that the money was reversed of which i didnt do that, they advised me to go to the bank and ask for proof of payment. My bank told me that they cannot provide me with proof of payment since the payment wasn't made using OZOW and they also confirmed that the money wasnt reversed. I called again Game and provided with the Bank Statement showing no reversals and i was told they will investigate the matter and get back to me(that was the 17th July 2020). I made another effort of calling yesterday since they haven't contacted me to follow up because it reflects bad on my Credit review that im not paying my accounts of which i did pay Game. When i called they lady that assisted me didnt have a clue of this case and it looks like no one was looking into it at all. She told me that they will again investigate and now i should again contact them to follow up within 14 days. Im really not happy with the service i received from RCS Game store.