Horrible Money Hungry Business

I have been trying to cancel my contract since August now! each month I get billed and every time that I call the cancellations department I get different advise! I gave my 30 days notice I called twice for that and yet no sms or email is being sent to assure me that my contract has been cancelled. I am still being billed even though all 4 reps that I have spoken to in the last 2 months have assured me that the contract has been cancelled! I refuse to pay for this!!! Worst client services ever and money hungry business!