Incorrect billing and poor service

<p>In February I purchased an HD decoder and activated it in Jabulani Mall agency. The reason I bought the new decoder was because I wanted high definition channels. What multichoice did was instead of canceling the old decoder they kept it active and billing knowing that I won't be using it. Today I received an SMS from the that I should pay R643.84 on the 28th to avoid a cut off, at 15:39 and 15:57 called the call center and spoke to Thabo and the lady I can't remember who was very defensive and refused to put me through to her superior until the line got cut off. The only thing that I request is for them to reverse the money that they are deducting for the service that I am not using and they are refusing.</p>