You should ask for your concern/complaint and TSB to be written up on a service form...AND for them to include their reason for denying it.
Haven't done a "service form" but have it on the invoices:
First 3 visits (pre-TSB): told the A/C was normal.
I brought in the TSB with the sections highlighted on symptoms and how to bill FCA and:
4th visit: passed "cooldown test". I opened a case with corporate and they (weeks later) agreed with the dealership.
5th visit: I told them to open a STAR Case if they weren't going to do the TSB. Passed "cooldown test". STAR Case opened. Corporate sided with dealership.
6th visit: I opened a case with corporate
before taking the truck in. Corporate worked with the dealership while the truck was in for service. Passed "cooldown test". Corporate sided with dealership.
The true definition of insanity. If I trusted another dealership I would go there, but I don't. Now I'm in ESP territory so it's not worth $100 a pop just to keep trying to get this done. Any time I have work done I'll throw it on the list and see what happens but I'm not going out of my way (or waste more of my life) to focus on it. I've got good tint now which makes a big difference. Not as good as a cold A/C but good enough to make me happy.