Vodacom is ripping me off

I have opted to migrate from Vodacom contract to Vodacom prepaid when my contract is up for upgrade on 1 February 2016 (I have an average spend of at least R1700). Not only was the cancellations lady having attitude, Vodacom has restricted the purchase of data bundles which is ridiculous as I now have to pay 'out of bundle' rates when my contract only migrates on 31 January 2016 during which the lady said I must switch my phone off from 00:00 to 23:59:59 this Sunday night. Switching your phone off for 24 hours straight?<br> <br> I feel ****** and cheated that I have no rights whatsoever now and I am at the mercy of Vodacom and their out of bundle data charges because each time there is a system error of migration. Surely I should only be affected on the day of the migration? This feels like the MTN Nigeria saga in SA. Unacceptable to be forced like this.