Shocking customer service

I have had an account with Game for over 3 years now, never missing a payment. Recently I have had them contacting me telling me that I am in arrears on my account with amounts over R1000.00. On the one call I had with them, they asked for my ID to log into my details and somehow they had a completely different person under my ID number (This person was a male and I'm female). I eventually just paid the money they claimed I was in arrears with because their customer service is absolutely **** and they could not tell me exactly which month I missed according to them. Today I get another SMS after I have made payment for this month ----> A REMINDER THAT YOUR GAME/DIONWIRED STORE CARD PAYMENT WAS DUE 1ST OF THE MONTH & THAT PAYMENT CAN BE MADE AT ANY GAME/DIONWIRED STORE. FOR QUERIES CALL *** <-----. I have also been trying to get them to resolve the issue I am having with my application on my phone so that I can actually log into my account and see what is going on with my account, but I still nothing has been done. I am also not able to log in to the self-service website as it keeps telling me that ---> Unfortunately we are unable to verify your details and cannot proceed with this process. <----- which I have tried resolving as well to no avail... Shocking customer service.