refusing to close my account after paying it off 2 YEARS AGO

I paid my account off in April 2016 however this USELESS company is telling me they have handed my account over and so in turn I keep getting calls FOR THE PAST 2 years to collect money that I HAVE ALREADY PAID in 2016!!! I have sent my settlement letter along with proof of payment to 8 different people over the past 2 years and NO ONE takes ownership of this.

Then I call in YET AGAIN today and the situation is still the same, I get through to Sibongile Khumalo who might I add had me on HOLD for 30 minutes while she's supposedly consulting with her manager Nomsa Twala... after this very frustratingly long hold time she passes me onto someone else yet again... ***!!!! can anyone at this company actually answer any questions????????????

This has a very bad impact on my credit rating and no one is willing or maybe even capable of resolving this for 2 YEARS!!!!

the number provided by Sibongile just rings, NO ONE answers. I suppose this is another ploy to just pass the buck so that you don't have to deal with it???????????????

Zanele Makubu is supposedly the person that should be able to rectify this... short of locating you on social media and invading your personal space I actually don't know how anyone can get hold of you, after letting your phone ring for 12 minutes I hung up out of pure frustration.

I NEED THIS RESOLVED!!!!!!!!!!!!!!!!!!! come on it has been 2 years???????????????