Contract Downgrade Mess

As usual I'm at it again woth Vodacom. My contract came to an end and I phoned in to downgrade it. I knew this was going to be a painful process and as expected it was. Basically I opted to go to prepaid and I was told this would happen 1 Feb. Obviously 1 Feb came and it wasn't downgraded. I can't acted them and told them to downgrade it. After numerous calls and complaints they finally said 1 Mar. I told them I will not be paying my old rates when 1 Mar comes along and I will be disputing the transaction if it happens. They assured me it wouldn't. All these conversations were recorded. But of course the full amount came off. As always pure pathetic service. No one listens on that side. Get you customer service in order and start listening to your customer. Pathetic!