@brileemoot You did right. Some people will try anything to get things free.
We've had a person call saying their dogs got fleas from us, but we checked, and the dog hadn't been in for over three months. He told us during check-in, he doesn't use flea preventive, and we have the pape to prove it.
We also had this woman who'd come in for a nail trim and refuse nail grinding. She'd call two or three months later, claiming she came in a week ago and we didn't grind the nails,they were sharp and left long. She got three free nail trims like this until I noticed the pattern, and we kept track. Like clockwork, she called to complain, but we had the evidence she was denying grinding and that her last visit was over a month ago, so logically, the nails grew. She hasn't come back since.
We've had a few sketchy clients also claim their dog got injuries from us only for us to have proof they haven't been into the salon in months.
People will try to scam whenever they can.
Edit: spelling