I booked someone through an agency once where the meet was 1 hour for £300, but when I showed up at her door, she said that she wasn't expecting me at this time and asked me if I was sure I had the correct time. I showed her the text, and she told me she was going to call the agency to double check.
I also called up the agency and they said they'd get back to me. Got a text back a few minutes later saying to go back in.
The SP welcomed me this time and apologised saying she wasn't told she had a booking this early and said she wasn't even ready
She said to me that it's supposed to be £300, but take off £50 because of the error. She spent an extra few minutes doing her make up but I still kept my full hour with her and was still a very good meet.