My credit profile destroyed by RCS/Gamestores after settling the account

What a horrible experience I have received from you! I paid off my account in September 2019, requested the settlement letter but it wasn't sent. I was called in December that I owe interest. I Paid the R120 interest, requested the Settlement letter and for the account to be closed. Now in May 2020 the account is still not closed and has affected my credit profile. I am in the process of buying a house and due to your negligence the banks are sceptical to grant me a loan. This is very pathetic and unfair. I have called your offices several times, wrote emails but to this day I am still sitting with this problem??? You have the nerve of sending your debt collectors to abuse me while my account was paid off along time ago. You have damaged my credit profile!!!

To anybody reading this NEVER EVER USE RCS! I will take this matter up with the ombudsman. It cannot be right that you carry on damaging consumers rights just because they once had business with you and you make it impossible for them to cancel a relationship with you!