Initially the ad said 19 now it says 20 but the dates on their reviews were from 2020.

… about her age.  For example, if she turned 18 in June 2020, she’d be 20 now.  Her reviews started in late 2020, so she could have been 18 then and 20 now.

I dont think math or honesty is a prerequisite for their line of work.

Maybe she lied on her first posting and was underage . As for the profile it is set up by the reviewer not provider. ( OK she can correct if so desires) You can submit a problem report that based on being 18 for first review has to be in the 21-25 year age grouping.
In reality not anywhere close to the most excessive of age shavers on both listing and pictures.

I think the more important question is did you contact and see her?

No I didnt. That looks like a very fake ad.

Congratulations! Your comprehensive investigation has discovered one provider with an age discrepancy. No one should care that an advertised aged is a few years off from an actual age. This is an industry that is filled with dishonesty for both providers and customers. Focus on what is important. Reasonable accurate photos and good reviews are more important than knowing the actual age of a provider. Remember, even some of the US ad industry is based on deceptive and misleading marketing practices.

Unless it somehow pushes the provider into underage territory.  Now if we are talking 5-10 years then that's likely to be another matter.

She’s got two new reviews but both are first time reviewers with glowing reviews. Seems suspicious. I reached out to her and she requires a deposit so I didn’t pursue further. Will wait for more reviews.

There’s a Rip Off review just posted for her. Watch out guys. They even had a personal website created to make it look real. And the two fake reviews are now gone.

I see two other reviews there, one from a reviewer with a lot of reviews to his name dating back almost 3 years.  So, it is not clear what is going on with her.