I called to ask how long the wait would be for an ...

I called to ask how long the wait would be for an oil change if I didn't have an appt, they told me 1.5-2 hrs but if I had an appt I would be taken in right away so I made an appt for another day. I show up for the appt, give all my keys to one of the mechanics, tell the lady at the desk I have an appt and was told it would be a 1.5-2 hr wait even though I have an appt. So what's the point of making an appt?! I can't wait so I asked for my keys, was given the wrong key and asked where the rest of my keys were, they had to look around the shop for it. No apology, no attempt to fix or please the customer...VERY disappointed in their service. Will not go back!!