I would say your experience although unacceptable imo and experience could be classed as being quite mild.
When you ring a dealer always ask to speak directly with the dedicated motorbility advisor and if not available ask that they contact you back asap
Dealing with the same person can deliver better results imo
I have only had 1 dealer out of 5 that I would consider as being any good
Seat being the v worse
Problems encountered inc ( to many to list)
Sales/ poor knowledge/Attitude from all/service rubbish/car handover dire and so on
My faith was restored with my first Renault lease
(Over many yrs I have always hated the look of Renault cars that all changed when the Megan E Tec was born)
Renault
Smartness/smell of showroom,immaculate attire worn by all/unhurried,unflustered/many @/call keeping me updated,nothing to much trouble
I was given a delivery time frame and just after through a forum I knew that 34 of my model/colour were on route to the UK
I rang my dealer ( Spoke directly to my dedicated motorbility advisor) updated them and asked if they could grab 1 of the 34 for me
Next day a call to say they managed to secure 1 for me.
I could not have had a better experience from start to finish