Bad Service

Eversince I had a contract with this company my life has been miserable. I took a contract with Vodacom in 2015, everything started when I was slapped with an huge bill of R 6000 and I was told through a letter that they have decided to reduce my bill to R3000 as a gesture of kindness ( how strange). And now in 2018 under the same contract (of which I was under the impression that it was paid off in October). To date my balance due is R 4000 and now R 3800 for some strange reason. I have tried calling Vodacom to seek an explanation for this matter but a rude consultant who dropped a call during a conversation. The only thing they have managed to do is to bombard me with reference numbers and I do not know how many unresolved cases I have with Vodacom. This is totally unacceptable and financially straining, I cannot be subjected to such unfair treatment.