ON AIR from DURBAN

I have been contacted by an agent of this company, offering 2 Explora decoders and saying that the total of the 2 decoders will be at a R568.00 per month and that this will REPLACE my DSTV amount of R919 per month. When the installer arrived I said to him that I just want to make sure about the new contract. He pointed out that these decoders will NOT REPLACE my DSTV account and that the R160 per Explora is ON TOP OF MY DSTV account. I was MISS LEAD BY THE AGENT!! I refused that the decoders get opened and I would like ON AIR to collect these decoders. I am calling them at the moment.....but nobody is answering......did not think they would either. I need HELLO PETER to PLEASE STOP THIS.