Poor Service

I am so disappointed by this company. On the 19th August i requested a cancelation fee which it was provided the same day and I paid the quoted fee on the same day. Few days later my contract number was converted to Prepaid which i was fine with progress. On the 25 September R1100 was deducted on my bank account I asked Bank consultant to reverse it since I unauthorized Vodacom to deduct my account for cancelled account. Today i was so surprised to receive a call frm VVM telling me about my vodacom account that are in arrears. I hate to say that I have to waste my time explaining myself. And the poor guy did understand my frustrations. I really dont understand why i have to waste my airtime calling the bank to reverse my money becouse of poor service frm Vodacom. Why should i have to explain myself to debt collectors for cancelled account. It was the first tym taking a contract from you but my first experience is a mess