Absolutely useless!

I had a contract for a lte home package that I cancelled more than a year ago and telkom is still trying to take money off my account. I have wasted tons of air time trying to resolve this and they just can't seem to get it right. They keep telling me that its cancelled and someone will contact me but I'm still waiting. They have said they will process the money owed back to me but once again still waiting. I have spoken to a manger mkensi magubani and he too has not bothered to get back to me and is always busy when I ask for him! He doesn't even bother to reply to emails? I have put a stop on my bank account for money they still keep trying to take off and now they are trying to black list me? This has been a horrible experience and I will never recommend their services to anyone! Absolutely and completely useless service to customers.