Onair Tv - Sold wrong device still waiting for them to correct the problem.

When the sales person sold me the Ultra Explorer I asked if I would be able to do extra view and was told yes. They never bothered to check what I do have they sold me something I do not need or can use. I phoned on Friday spoke to a Merlin who I told about the whole mix up and that they never bothered to check what I do have and sold me something I can not use still waiting for them to get back to me. I told them I do not want the product and they need to fetch it and I am cancelling this contract. Be careful this is not made for extra or dual view it is a stand alone device. They don't check with DSTV what you have and sell you something better they want a quick sale here. Still waiting for them to get back to me and make arrangement to fetch their device - however they do only remind you that you must pay R350 because you opened the box the catch is the contract is in the box ?????? I am not phoning them again you are going to speak to 100 people and never get anywhere with this. Just so they know I deleted their debit order by the way.