still waiting

I was contacted by Elite Mobile on the 4 April 2016 to upgrade 2 contracts. I was mislead into thinking it was somebody from Vodacom calling me. I agreed to the upgrades. A few minutes later I received en email to say in fact it was Elite Mobile that was handling this contract. I immediately called in to cancel the upgrade. I received confirmation from their side that everything was cancelled. Till this very moment my data contract has not been cancelled despite numerous messages. Now they say the problem lies with Vodacom as they are supposed to reverse the contract. I contacted cancellations at Vodacom who put me through to the online department. I spoke to Wesley who said Elite Mobile was supposed to cancel this data contract. I'm being pushed from pillar to post. I would like to be assisted asap.