What I do when I take anything to be metal-finished, i take hi-res pics of everything I give them, and I give a copy to the manager who takes my order, that eliminates any arguments about "we don't have that, you never gave it to us." Then I make sure he checks-off ea. one against the picture(s).
I don't recommend 'hitting the roof.' That gives a very transitory flush of self-righteous indignation, and immediately puts them on the defensive. As was suggested, give them a bit of time to try and turn it up, they likely will. If not, after a reasonable time, you can negotiate what they are willing to do for you. I always feel it's better to 'play-nice' than to scream & shout.
There is one situation where I lost patience with a Honda car dealership, but it was after weeks of trying to get them to 'do the right thing,' and it all was because of their mechanic's gross negligence which put my family directly in harm's way. Thank-God no one was injured, it easily could have been a multiple fatality, I think God watched-out for my wife, my in-laws, and myself that day in Gainesville FL where we were attending my son'd law school graduation. The mechanic responsible was fired. They spent $7K fixing my Accord after they botched a 'preventative maintenance' repair of its timing belt replacement. The car died just after we turned and went through the busiest intersection on probably the busiest day of the year in the biggest FL university campus. Why? 'Someone' forgot to torque-down the crankshaft pulley bolt, resulting in the timing introducing the pistons to the valves-by force. 300 miles from home, with my 89 y.o. in-laws in the car, in the middle of a FL summer...'dead' on the road, in the middle of eight lanes of traffic. It took them three attempts and two and one-half months to fix the car. During that time, it broke down on my wife on the FL Turnpike, during her customary 70 mi. one-way commute. Again, we dodged a family member being killed by traffic. The last repair, the cashier tried to get me to pay, it was $2900, and I found it hard to keep my temper, but I did. I gave them the personal cellphone number of the general manager of their chain of dealerships (which includes AUDI and BMW) with-whom I was on a 'first-name' basis by this time. They finally got that straightened out and then told me that "we can't find the keys to the other cars in-front of yours on the lot, so come-back tomorrow and pick-it up!" It was about ten-of-nine p.m. I headed out the door to the parking lot and told them to get their tow truck to move the cars blocking me-in because I was leaving with my car and wasn't going to be too-concerned with a few doors, bumpers or mirrors as I extracted my car. Then I hopped-in and started my car, and was able to get through the 'roadblock' of cars. I think they thought I was going to show-up with a 'spare key' and take my car home w/o paying, not-knowing that the dealership was on the hook for the total cost of repairs. That's probably the closest I ever came to losing-it over dealership behavior. If someone got hurt or worse, it would have been an ugly lawsuit.
I think I'll make a sloe gin fizz and think about kittens and puppies for awhile, and then go shopping for some new shoes. That'll calm me down. :rofl_200: