Bad service

<p>I have been a loyal customer for close to 2 years if not more,last year I had a data sim contract (my giga 20) with them,I was paying R200 permonth for 20gig of data that was my contract with cell c.after the contract has expired they called after few month asking me whether to keep the contract as it is for another year,I told them aslong as everything stays the same ,i receive my 20gig i dont have a problem at all,that was the agreement between me and cell c,after a month I received 10gig of data,I called them and ask, I was told that's the contract I choose from them ,I said to them that they can trace back my call since they are recoded then they will hear that I didn't choose what they gave me,after that my SIM was always off line,no network at all,i called again and i was told i have to buy a new sim and do sim swap and that was not my problem ,last month I ddnt even use the data dure to the sim off line but they still withdraw the money from my Acc ,when i want them to cancel my contract with them I was told I'm going to pay for another month's </p>