Disgusting service by Game/RCS -

I called Game stores to get a settlement amount as I wanted to settle and close it. I was given an amount by the call centre agent. Paid the amount same day and have been requesting a settlement letter. Today I am being told there is an additional outstanding amount of R3000! And another agent is now telling me the one I spoke with previously never requested a settlement amount on their system and thus the account isn’t closed!! What utter nonsense is this? I closed that account for a reason as times are tough and looking to live a debt free life! I was given an amount by a consultant as I did not thumb suck it! Who must be responsible if consultants don’t know the difference between settlement and outstanding balance ?!?