RCS IS **********

I have 2 accounts with RCS - Pick n Pay and RCS store card. I settled both accounts and I sent an email to RCS to update my name and close the accounts. They sent me an e-mail saying I should wait 21working days . its been 3full months now nothing has happened. I am still owing them and my account is in arrears at Compuscan and all credit check facilities. 2. I am applying for a house , I have just been told that they did another credit check and there is an RCS account that was never there under my name . The account belongs to someone else but showing under my profile if how I don't know RCS doesn't know either . I have sent several emails , I have made affidavits , signatures and provided my certified ID but RCS is just not removing any accounts instead they gave me an extra account that I don't know of which they also confirm that its not mine. RCS you are the worst company I have ever dealt with I have never been this disgusted!!