Telephone marketing VODACOM and service pathetic

Telephone marketing talked me into upgrading my contracts - they had ALL numbers wrong - ( I have 4 numbers on my contract which I sincerely regret at this stage). They incorrectly changed my data bundle to a 120 min airtime contract with which I should have received a Tablet. I phoned on 6 July when I realised there was a problem - the "Tablet" had never been delivered and they said they would correct their mistake and go back to the data bundle on the ****le. After 3 months I still have no data bundle but airtime on a ****le that I can't use. Cresta staff tried to sort out the problem without any success. Today I heard I could migrate back to my old contract BUT have to pay R1000 to do that. I've been paying for a "contract" that I've cancelled 3 months ago and still have no data bundle. Service pathetic !!! Cresta Vodacom can also not help to address this problem.