Cancellation of Contract

I have been trying to get assistance from Vodacom regarding my Contract i took out for my IPAD in Feb 2014. I was considering upgrading my contract, but with the ridiculous amount of time i had spent on the phone yesterday (4 hours to be exact) only to be pushed from pillar to post because of some migration you guys were doing and being told i need to go into store to just find out what deals i qualify for. Then when the shocking news came of the amount you wanted to charge per month for an upgraded contract and to mention an admin fee i declined that and requested to cancel my contract. Then even more shocking news came, apparently my contract was only activated on 05.03.2014...which i disputed because i received my ipad in february 2014. The cancellations consultant was very rude and would not explain the itemised/pro rated bill i paid in march and then again end of April. I would like someone to please call me to explain how you can charge me R60 for my contract for the first month and then close to R500.00 again end of April 2014. I would like to know the dates i was pro-rated for. Lastly i would like nothing more than to be RID of Vodacom...your service is disgusting!!!!