switched off

I upgraded my contract in Feb and on the 18th March was cut off, I travelled 30km to go see a Vodacom shop to be told that I have exceeded my limit, so I enquired why are Vodacom not just taking the money owed out of my bank as my previous contract, the reply was that I am now on a top up contract and not an open one, this was not explained to me when I signed, they advised me to go to game where I signed the contract, this I did only to be told Vodacom are off line and I must phone 082111, this I did only to be told I cant change contracts for 3 months and if I want to change I must go back to game, so I travelled another 30 km to game and they phoned for me, they were told it was the wrong number and to phone another one which they did only to be told they are too late, game told me that they will phone me today which they haven't, this is my work phone and I need a contract change as I cant accept being cut off without notification, Vodacom customer satisfaction stinks