Embarrassingly revolting service from Game Zevenwacht consultants

I bought a DSTV smart LNB from Game Zevenwacht. When I got home and had it installed it didn't work. To prove that the new LNB was the problem, another older LNB was installed and worked perfectly. I took the LNB back to Game to return it and to get my money back. I was consulted by a lady and a man named Emmanuel. They both told me they cannot refund me because the LNB (that I had bought less than a week ago) was old. I asked them how they had reached that conclusion and they rep**** that it was because the LNB was not looking new. Of course it would be stained: it had been installed and unistalled in an effort to be fixed. I told them to send it back to MultiChoice as the LNB has a warranty of a year. They told me they no longer send the products back to the supplier. What annoys me is that none of these people are technicians so how could they have known the LNB was old without testing it? They were absolutely not willing to help.