Vodacom services is a nightmare

I took a contract with Vodacom around May 2017, with the agreement that I will be paying R349 every Monthend. They were debited at agreed amount until August. September they debited R599. I went to Wonderpark Vodacom shop inquired why they debited so much was told it Vodacom life, I ask them to cancel it since I don't know what it was the guy who was helping me sent an email to them dat it must b cancelled n have my money returned after 3days I received a message that they called it. Monthend October Vodacom debited R641, I went to Soshanguve crossing enquiries was told it Vodacom live I ask them to cancelled it they called Vodacom no. ********** , I spoke to a lady named lerato, she told me it is cancelled n logged a complain sent an sms with the reference no. Nothing was done still, I receive an email with the November invoice that I have to pay R489, I went to atterbury Vodacom shop n d lady told me that it because my contract is an open line I have to pay R9.99 every month so dat they can fix it n Vodacom live won't be charging me I agreed n month end I left R350 in my bank d debit order bounced n I went to Vodacom to pay that R350, now am charged error because of Vodacom life that I have cancelled more than 5times with complaints being logged with no assistance at all.Am very furious n disappointed at d service I received at Vodacom. They have not help me at all instead creating a bad record on my name. I wouldn't advice anyone to take a contract with Vodacom. Those people working in Vodacom shops they will keep telling me different stories with no solution at all. Vodacom customers helpline is useless not helpful at all.