Security cameras service

I have used this service in the past and was happy, I had a issue with my camera system to which jude suggested he had a working second hand system for R5200. I agreed and installed it same weekend, I had told jude of two of the cameras from the same day of installation that they were flickering and rolling at night. He came checked connections and left, with said cameras still not actually fixed.

I advised him that they still roll and flicker at night, but now he doesn't answer our calls and ignores our messages. R5200 for a faulty system is alot.