such a ***** and i cannot believe i was once their client

I have been on numerous calls with Vodacom regarding cancellation of my contract after i had written a review on this side,1st The claimed that they cannot get hold of me all along and last week i was contacted by one of their agents regarding payment ,"HOW DID THEY GET MY NUMBER??They didn't have it according to the response on the review.2nd I contacted the call centre being passed from one department to the next and some promised to call back because they were having technical problems etc but they didn't. The only thing i wanted was to cancel the contract because Vodacom cancelled my debit orders when i was paying just fine-I called them to inform them when my salary payment date changed they did not adjust their systems which resulted in nonpayment?I had to physically go into the store to sort out the dates.i then decided to pay at the store directly which was going fine until they charged me R2400, out of data nonsense which i don't know who approved that open plan *******.Now i am being told i have to wait till next year to cancel yet i don't feel i was at fault for all this mess.I paid R1900 Last month but still there is more money that is required from me.Vodacom is such a ***** and i cannot believe i was once their client.