Shocking service cell c

I have had quite a few years dealing with cell c and must say their service to existing customers is absolutely disgusting. I was called in July last year and offered a new contract as apparently according to the salesman my contract was expiring in Oct. I first said I'm not interested as I will keep my contract month to month for awhile, besides I wasn't prepared to pay more than I was already. He promised it was the same price except now I could have a better phone!! Well eventually all was arranged and I received my new phone. A.month later when I received my account it was double the price. When I queried with the same salesman... he phoned me to offer another pocket router... he said not to worry it was just pro rata. So I duly paid the extra, only to find the following month I was charged the double amount again. When I queried with customer service I was told but I have 2 contracts for the 2 phones!!! I explained the whole situation and advised them of this so called salesman and that he'd ****. They phoned me and apologized as they had listened to the recording and realized it was their fault.and a case was opened. I would receive a call to clear the amount on my acc and move forward with 1 contract or pay as you go.. whichever I'd prefer. For 3 months I battled with numerous people and departments to try and sort out. Next thing my phone was suspended. I went in to a cell c shop where I was told they can't help me but assisted in calling cell c to customer service... although I had to talk and explain the whole story again. In e again was told another department had to sort out.... needless to say nothing materialized once again. I was then told they tried to call me but could never get hold of me... well excuse me... they suspended my acc so couldn't receive calls. Anyway the helpful lady at the cell c shop unblocked my acc as she realized no one was actually assisting me. It's now January and I'm still getting threatening emails and sms to pay the account. I get a call EVERY day to pay the account. I have explained the whole story to each and every person each day.. still to no avail. How bl..dy frustrating. Well, today they suspended my acc again. I've had it in chunks.. I have a second case still pending but no one helps. I've been more than patient with them but this is just the final straw.. I don't want to deal with cell c anymore thanks.. they can have their phone back with the greatest of pleasure.