Faulty Istallation

We have moved into a new block of flats on 1 Dec 2016. Since we have moved in some of our channels on our DSTV are not playing. We mentioned this to the caretaker and they got Ellies to come and have a look at it. The gentleman, named Wessel, told us that is was our decoder that was faulty. We then explained to him that our decoder was working perfectly at our prevous flat. He then managed to fix the problem for 1 day then the next day we were back to square 1. We could only view a few channels. The error message we received was there is no signal or a problem with your installation. We called Ellies and explained this to them and then they got Multichoice to swap our decoder with an \older"model as Natalie at Ellies explained to us that our decoder does not work on their \""old\"" installation. We took the older decoder from Multichoice and off we went home. We connected it and now we get fewier channels. We then called mulithouice and they explained to us that there is problem with the installation or we are only getting vertical channels and not hirzontal channels and that Ellies needs to come and set the dish. Ellies now wants us to pay for a call out fee to FIX THEIR PROBLEM! """