Bad car dealer

I bought a car in January from this compony. It came with a roadworthy certificate. The price was not negotiable. The Sunday after the Friday, the car didn’t start . Something wrong with the ignitian. This happened twice in two weeks. I am very unhappy about this deal As I was under the impression that I bought a reliable second hand vehicle. I will be careful to recommend this dealer.

A month later, there was a rattle at front wheel. We took it to mechanic and he said that there is a massif oil leak which had to be fixed immediately. The front and back shocks need to be relplaced. Less than 3 months later, the car stopped in middle of road because of nut which connects the wheel with the breaks fell out. This was the initial rattle i heard.

Where and how did this compony get a roadworthy certificate if the car is in this syate. None of these things were communicated with us. I am 54 and have never had so much trouble in a span of 3 months. I would think twice to buy any car from them again.