UK Hyundai dealers are truly shite. When I worked as a mechanic repaired cars were always road tested before handover to the customer. And if anything was wrong it was fixed beforehand. Does no one give a toss anymore? Pride in workmanship is non existent nowadays. Especially main stealers.
"Pride in workmanship is non existent nowadays."
I'm sorry to say... but I think the above applies in general these days.
If you can find any tradesman (mechanic, electrician or otherwise), that gives a Shite, then hang onto them like gold dust.