False contract upgrade

I have a contract with Vodafone and it was about to come to an end.I called vodacom customer care to cancel it but the consultant I spoke to convinced me otherwise .She told me I can upgrade for a 10 gig any time and 10 gig night owl for R139 before I could even agree she said to me I must not worry vodacom will call me first to confirm my upgrade and whilst still waiting for vodacom call to my surprise a courier guy delivered the router and I went to a Vodacom outlet in Brooklyn they could see the upgrade they advised me to wait until the 1st of May to see what happens now on the 1st I haven't received the data that I was promised with the contract so now I really want this sorted or come collect your router and cancell the contract asseblief.