[The Dutch Joe]

Seems like the don't have control over their internal organisation..

Individually, these things can happen...
But all of them together, would also make me reconsider going to this dealer again..

Failing on communication and planning is one thing.
But failing on technically fixing, or even putting back together the car, is too much..

I would ask one of the Managers or Site Directors for a few minutes of their time..
And just explain you experience you had these first encounters.. Or let him read the mail...

A good leader should do something with these signals and maybe offer you a compensation of some sort..