giving ********* 2nd chance!!

On 25September 2015 I received an sms that my account was being upgraded. I phoned customer care and asked them what is happening where they told me that someone phoned and upgraded my contract where I then told them somone is committing ***** and they must stop this. 1 week later on 3 Oct an shop in sandton approved the contract to be upgraded again with an *****enlent I'd where I was lucky and phoned the shop while the lady was still in the shop. But now I am left with an account that has been upgraded and a bill of almost R1000. Vodacom gives away contracts to easily and now I must go and do all the hard work for them to sort out this mess! What is going to happen to my account becuase I will reverse all debit orders and after this sick bussiness I want nothing to do with vodcom and I want my contract canncelled!