Either this is a repost or this situation happens a lot more frequently than people realize, over the summer there was another AITA where a woman got a Brazilian, her waxer said something like this and the buisness brushed it off like it was nothing.

Torn between N A H and N T A, since you were uncomfortable but are at the liberty to say that you're nervous/uncomfortable to the staff before hand. She probably has done so many of these she's not even fazed, should she have said it outloud? No. Was she trying to break the ice and get you to relax? Who cares at this point. Should the business done something with your complaint? Absolutely. Do they get this complaint alot? Sounds like it.