Deal still not cancelled

I am very very upset with the service i received from Vodacom on the 27th April i ordered a laptop and cancelled the deal to the 30th April due to incorrect information provided i than took out another laptop which i recieved i than received the laptop i initially ordered and i sent it back as i requested for it to be cancelled. I have been calling vodacom continuously to find out if it has been cancelled but everytime i am being told that a request has been sent through but nothing has happened and you deducted for the laptop that was surppose to be cancelled i called yesterday and i was helped by a gentleman who finally put in the request. I spoke to Thato who advised me that the request has been put through however it will take 7 to 14 working days and ?'m not going to wait that long because i have been waiting for almost a month already for it to be cancelled and i have been calling and holding for nothing just to be told that all the agents i spoke to didnt even make notes on the system i want this sorted out ASAP i will take it up with the directors of Vodacom and its not a bluff.