Second hand car bought May 2019 August 2020. After a catalogue of problems fan belt, exhaust, window, and now ECU unit (if that is the problem can't get a mechanic to diagnose definitively and fix. I have now asked in writing for full refund from selling garage. Who has already refused verbally to fix or refund. My ds first car he saved up for himself we are not rich. £2500 cost. Any advice...aside from Trading Standards or Citizens Advice which I will do just waiting to hear back from garage at the moment. So down about it all..