Cancellation of upgrade

I cancelled onliupgrade on 7 Apr same day I did the contract, I cancelled the contract because the promise of the advert was not met, therefore I made contact with a Vodacom store who could deliver what was advertised! Berasha assured me on the 7 & 8 Apr that my upgrade cancelation would have been processed by Friday 10 Apr to enable me to do an instore upgrade! <br> All the calls I had to make, no calls received after this promise to assurance me. <br> On Friday I made numerous calls to enquire when the cancelation will be processed only to be sent from pillar to post, I'm told we don't deal with cancelations or we can't do this then I was told by Sachin it takes 5 days to cancel an upgrade, I was never advised of this during the 3 days prior, when I spoke with Charlene who is a manager in the online department, she told me cancelations takes 30 days, however she would refer to the retentions department and advise me. Charlene has up to this minute not phoned me back. Online department informed me to call cancelations department on *** and not online department as they cannot cancel upgrades. I've even got confirmation from RAM couriers via email of documents scanned to Vodacom?