Very Bad Service

My sister's Boyfriend bought her a car and we all accompanied them for a pick up. When we got the the car was not ready which was absurd because they called them to come collect. After a few hours they called us to see the car and all was perfect until we had to get inside,the seats were covers in refusebags because they haven't dried out. Okay fast forward to my sister and boyfriend getting the car disk it took the the dealer a month and few weeks and the permit had expired. Then a list of things followed1. The car had scratches,2. The previous driver had tickets which my sister had to pay for at a road block that nearly got her arrested,3. The tires were old and brick pads, 4.The arm rest was broken which she reported to them. The consultant Lesley was very active before the sale as soon as the signed the papers he disappeared and never helped my sister and boyfriend.