Cancelled contract

I am utterly dissapointed in your service. I went to one of your shops last year october to cancel my contract I have with you. They insured me it will take up to 21 days to be cancelled but after a month I recieved a statement againand called your call centre to find out that my contract still active and papers were send to wrong department. I went in again after I couldn't get hold of the agent on his email and phone.who assisted me. Another cancelation was dine with some sort of escalation refernce saying that they also need to cancel it from the first time I app****. December I recieve another statement while on holiday and agents again disnt respond to my emails. Went back 2 weeks and only found out my contract was cancelled beginning of February and to.my surprise I recieved another statement of R700 for a service I last used in october 2017 saying you will debit my account end of February but yesterday I recieved a msg of telkom deducting R700 from my account. I phoned in to your call centre again and the person tells me it wasnt my fault that my contract wasnt cancelled and I should have followed up on it and I did repeatedly. So he says the shop was at fault but im still liable to pay for data and service even though I did not use the service. I requested to speak to a manager and was told he is also busy talking to a client and will phone me back and guess what still waiting. If I dont get a response today from you I will take legal action against you for all the debits you did against my account for something that was your fault. So I will wait for a call on this number ********** 375