Telkom worse network

Telkom is the worse network in South Africa.i have contract with them in 2014 and I cancel it and the amount was deducted from my account, yet 7years later I see on my credit report that the same account it's been activated apparently because I owe R186 wish is a lie I paid the full amount 2014.so sept last year I went to vangate mall Telkom branch to find out what was going on and they assure me that it will be fixed and close wish it did happen for a while and was removed from my credit report for 6 months, but it's back again I don't even know why.please hello Peter help me as this is affecting my credit score badly because it says am not paying telkom.even if I do owe them this debt it's prescribed already and it's against the law to charge a person for a debt that is old.