Edgars disappointing service and *****ing of my money!

I am absolutely infuriated with the service I have been receiving from Edgars which is not even affecting my credit score. I made payment for my account in store, more than the minimum amount they require in September yet I am receiving messages that my account is in arrears. I went back again to their Sandton store and nobody could assist me even though I presented them with the slip. The consultant made me call their finance department and they cut the call each time after I finished explaining that my funds were missing. This happened 7 times. I have sent countless emails to their finance and again no response. This is now appearing on my ITC profile for an account that is paid up! Surely Edgars is ******** people of their money and claiming that they haven't paid. This is theft!