Did that mean you ever saw your money back? How long did court take?
Not from these clowns but similar.
All in all it took about a year. 1st-3rd requests for full refund along with justifications sent by recorded post each approx 2 weeks apart iirc.
I was lucky in that they ignored the problem. Started small claims court process after that (for sub £5k iirc, so you may be over the threshold) and 6 months later had gone to court, their lawyer asking if I'd accept settlement of 60% literally minutes before we went into court and the judge ruled in my favour.

I'd say If your knowledge of cars is small then go to big dealers and deal with them. If there's an issue you'll have a better chan of getting your money back. On a different note, don't let go and continue fighting. You've got a good case, you'll get your money back... Unless you're happy to write off that amount
as long as I have something
I don't get badge snobbery
It's all relative. There are low spec minis all over the place.