and (as is discussed farther down the page) they are a notoriously unreliable source of info concerning rates.
Since she doesn't provide the info in her website or ads, your best bet is to politely (and discreetly) ask.
While you *can* mention the TER profile, don't automatically assume the rates are accurate or updated.
Also, I'm assuming that this lady is either newer, or doesn't advertise here. If so, she might not even be aware that she's reviewed. Imagine saying to her, 'Hi, I'm a member of TER? What's TER? Well, it's a place where guys write all about the ladies they've seen and rate them on a scale of 1-10. Anyway, it says that your rate is $250 per hour. Can you confirm that?'
I just know that when I was new, I would've hung up. Especially if the rate you quoted was wrong.
(It took me a long time to get used to the idea of TER. At first, I pictured a bunch of creepy dudes in basements masturbating in front of their computers, gossiping to each other about escorts, and tearing apart women's appearances. And there are definitely some like that out there.