Bad Installation

After I purchased a new DSTV , installation was arranged by Elsat.I only realised that the installer used 2 *****s intead of 3 (as per their so called standard) , the reason I realised that was due to the windy season as the dish was shaking extremelly and abnormaly resulting into no signal at all.The so called installer did not even write down his numbers on the slip , because he probably knew that he did a **** job. I called Elsat and they just told me that I have to pay for a call out as their 3 months warranty has passed.Next time they must allocate installer who can do the job right.....