Cell c' atrocious, horrid services

I had a 2year Micro SIM card contract with Cell c from the 16.01.2013 for my iPad which I cancelled, first in November 2014, then in December 2014, then in January 2015 and lastly in writing in feb 2015. But Cell C still continues to debit my bank account for almost 3 times the original contract amount a contract that has now ended and I have tried to cancel. This is not first time that Cell C has continued to charge me for a 'service' I have cancelled. First it was the 'DREAMCALL' competition that took months to cancel, now it's the Micro sim.<br> I FULLY UNDERSTAND WHY THE GENTLEMAN WHO TOOK OUT AN AD DID THIS. SAYING CELL C IS INFURIATING IS A GROSS UNDERSTATEMENT, CELL C IS ONE OF THE WORST COMPANIES I HAVE HAD THE DISPLEASURE TO DEAL WITH. I WANT NOTHING TO HAVE TO DO WITH THEM AND I WANT THIS ENDED CONTRACT TO END NOW! I tolerated cell c while the contract was in place, but not a day longer. Cancel this contract and STOP TAKING MONEY FROM MY BANK ACCOUNT