vodacom has absolutely no care whatsoever

I received a tablet contract via elite mobile(telephonic offer) which is a company that sub contracts for vodacom, and i had 7 to 14 days to make my mind up if i want the tablet or not, well at about day 6 i contacted vodacom and told them that they can come fetch the tablet as i was unhappy with the battery duration, then vodacom call centre referred me to elite mobile's call centre as they don't interfere with the sub contractor's packages, so I phoned elite mobile and told them the same story and the centre consultant told me that the contract will be stopped and that the tablet will be picked up soon, about i think a week or 2 later i phoned again asking when they are planning to come pick up the tablet and again they told me to rest assured the contract is stopped and the pickup will be soon, this was november 2014, its now almost march 2015 and i am receiving thretening letters from vodacom which states that if i don't pay in 7 days then legal action could take place! Yes i did stop orders to stop them from deducting my money and i would like to know if they are going to refund the stop order money also when they realize that the fault sits by them and their sub contractor?