Hi --- To be honest in my opinion, I think you have lost out enough already by dealing with this shower of ....?... and if you are able to bail out this November then thank your lucky stars, do it and learn not to ever deal with them again. !
If needs must be, then deal only with reputable garages that your friends, family or work colleagues recommend and local dealers where they have had good dealings in the past....you can't beat word of mouth results. IMO.