Dstv ripping us off

My dstv has been showing an E48-32 error every day for the past week. I called dstv and I was told to disconnect and reconnect my decoder. That did not help for 4 days I couldn't watch TV. I finally took it to a dstv agency where they said it was a signal problem. I had to pay a dstv installer R250. 00 to be reconnected. I don't understand why I had to pay additional amount if the problem was a dstv related problem. Because I missed TV I paid and am now watching.