It once took one of the shops near me almost 3 months to mount my bindings...Granted it was over the summer/fall but when I went to pick them up 2 days before going skiing they said they hadn't done them yet I was pissed. I asked to speak to the manager and the shop tech and yelled at them for like 15 min, in the end, the shop tech went to the back and mounted them while I waited and the manager said I could have a free jacket from their clearance section (or get 50% off their brand new selection - I picked the free jacket cause it was pretty sick - and was originally $350) and it took the guy 20 min to mount my bindings.
Even though they made up for their mistake, I'm still never going back there cause that was the SECOND time I had issues with bindings mounts (last time they didn't mount them in the right spot and had to remount them).
Two lessons learned though, always make sure the shop tech knows EXACTLY were to mount your bindings (mark the spot on your ski if you have too), and tell them EXACTLY when you'll be back to pick them (and make sure that date is well before you want to go skiing).