zero product knowledge

had booked a appointment to view a vehicle but still waited an hour to be seen,car was as arrived condition ie dirty and not valeted,wife was happy with car and purchased with promise that vehicle would be valeted etc.Mentioned to salesgirl that 3 dustcaps were also missing to which she replied "what are dustcaps",
salesgirl then tried to upsell various overpriced addons and then said that 3 month warranty had a maximum claim of £500 which breaks consumer law.The part ex value they give is based on what "we buy any car" gives as value,i know this as I went outside for a smoke and saw them doing it through the window lol,they made me a pathetic offer for my vehicle but I laughed in her face and she scurried off to speak to her boss and came back with a acceptable offer.Car valeted when picked up and they had put fuel in by mistake as I hadn't paid the £20 for fuel add on,next day noticed dust caps still missing so went to garage to sort and all tyres below pressure with 2 fifty% under,DANGEROUS!This place is staffed by a bunch of clueless kids.