Have to pay a non existing smart card

Yesterday I tried to activate my holiday home decoder package on DSTV. With the new non helpful, incredibly stupid self help service of DSTV, I accidentally activated a smart card and decoder that has not worked in years, telling me I need to pay something like R300 for it to be activated. No matter how hard I tried, I could not get the smart card de-activated ***). I then immediatelly called the call centre to ask them to cancel it. Twice they swore high and low that it well be de-activated in 30 minutes. This morning I checked and its still active. I phoned multichoice yet again, only to be told, that if I want to de-activate the premium package, I have to pay the R300 and then phone them so that someone can de-activate it, which it rediculous, this pathetic system cannot even handle this, I will not pay the R300, in fact, with all this incompetence, I am cancelling all 3 my decoders with them. Rugby is finished, dont need their pathetic service