Out of pocket expenses?

I paid covenant 100.00 to install my inverter. The 50 amp breaker was suppose to be replaced with a 60 amp. I lost all inside lights and unfortunately had my laptop charging which messed it up. I was told to uninstall it as it must have been hooked up incorrectly. Then once I returned to the terminal was charged yet another 100.00 to have it re installed ,on top of that lost use of my laptop. They will still rip off the driver for any buck they can get