You’re always allowed to put the disclaimer as I do.
“Please note, that if I show up to the appointment and you do not look like your photos I will leave with no donation. So please advise me now and save us both time or send your most recent photos”
I’ve actually have had a few send a new photo, 1 said that’s not me and we cancelled, and the rest reply “that’s all me baby”
I take new pictures every few days. I make sure to use them in my most recent ads, and on Twitter. It's best when the fella shows up, and you look better than your pics rather than the other way around!