Big maintenance companies
This type of problem is typical with SOME of the big maintenance companies. The larger the facility becomes the less personal service you tend to get and let's face it a helicopter is quite often your little baby that warrants a personal service.
For some reason many people think they get a far superior service with a large dealer but often they get ripped off and when you start asking questions why your annual bill has just doubled for no reason they get offensive and then do not like to deal with you.
There are some real good small maintenance facilities out there that produce craftsmanship like work at a decent price with a good service. If you find one then let me know.
Cheers.