Vodacom bad service

Vodacom has given me the worst experience of my life with contracts, I had a contract with Vodacom and everything was running smoothly and a friend recommended me to get a router deal as well, they sell you the product over the phone and they tell u R99 and no other charges are mentioned. Once it comes to debit, you see various debits going off from Vodacom, when you call, they take you from here to there. Oh so I finally get that sorted and cancel the router nonsense. I am now done with my contact and call in to cancel and I get hooked again into a nice looking deal by their sales agent. Now this deal starts on the 1st of October, which is tomorrow and I still have my 130 minutes remaining from my previous plan, all of a sudden Vodacom decides to take my minutes without consulting me. So what does a angry client do, I call their customer service, had to stay on the line for an hour before someone picked up and they tell me that I can't cancel the contract that hasn't even started and that if I cancel tomorrow, Vodacom will charge me penalty fee... I am so angry, disappointed, frustrated at the service Vodacom has given me. I just want to end things and part ways.