Commercial is annoying as hell. And I know exactly how you feel. Especially with companies cutting hours and expecting drivers to pick up extra work load.
We have one particular account that bitches us out over ANYTHING. Cool ass dude, helps me out a lot, but.... total dick. He won't generally talk to anyone in my store but me, and the commercial manager.
For example, we're currently looking for a trans filter/gasket for a '62 Lincoln. Everyone lists the wrong one. Napa, Orielly, Autozone, etc. Numbers matching car, so there's no way the trans model is incorrect. Don't know what the hell happened.
And then there's the '49 Ford that we just hunted down an OEM 6V horn relay for. Also had to track down the two water pumps for it that we never did find, but ended up shipping his two water pumps off to have rebuilt.
All kinds of weird shit we do for him that most places refuse to do. Hell, NAPA can't even get him a timing belt tensioner. End up sending him a belt tensioner, and calls us bitching about it.
But that's okay. He's probably one of the best body/paint guys in the USA and has done work for Chip Foose, and offered to repaint my truck for $100 + materials.