Bad repair job with no resolution

Initial conversations started off well. Was given estimates and told what could be wrong. They did not service my area, so had to take the fridge to them (was a small Red Bull fridge). Was told the board needed to be replaced and I gave the go ahead. Once I got the fridge back, i found several issues: Motor is loose and rattles, 1 foot is missing and lights do not work. The fridge did cool perfectly...till the next day when I found everything had frozen over, as there was no cut-off. I now had a Freezer! Sent my queries to him. Was told the reasons for the lights not working is because the bypassed the board, but they will look for a solution. No news about the freezing. Then all responses stopped and I was blocked on whatsapp