I read a nice newspaper story a while ago about Abe's Detailing in Norfolk, NE. When I wanted to have Jen's minivan detailed as a present, I thought I'd give Abe's a try and made an appointment for the $45.99 "express detail". When we picked it up later, the van looked nice, but they wanted to charge us for the $159.99 "presidential detail" that they performed instead.
I told the employee that I'd ordered the cheaper package. He said I must have talked to his brother and that his brother wrote it down wrong, and still wanted me to pay the full price for the wrong job.
I will never darken the doorsteps of Abe's Detailing in Norfolk again. If you choose to do so, I highly recommend you get a written estimate in advance.