Abusing their clients relationship with them

Telkom is full of nonsense I cancelled my contract with them after 9 years of having it coz I missed a payment with 8 days n they took me to Nu debt Management which harassed me everyday with legal action smses. After months of cancellation they had an amount of R203 I owed them they debited my account for it but still Nu debt is still harassing me for dat R203 but Telkom refuse to call their debt management company to update my account so they stop smses of threats towards me. I would never recommend Telkom to anyone even if I find someone in my household using Telkom whether is prepaid or contract I will destroy those sim cards dats how much I hate Telkom currently