I put the number into my phone, and saw that I already had it saved as "Jenna", which must relate to another older GT advert. It could all be the same girl, of course, but the b&s chances seem high here.
In my chat with "Jenna", I asked her to clarify her body size once she'd admitted there was a sexual element to the massage. She ignored me; I asked again, explaining that physical attraction was crucial (which seemed reasonable!), and she told me I was "after the wrong thing" and unceremoniously blocked me, which seemed fairly bizarre. I'd been clear that I understood there was no B2B.
I've no idea if any of this is useful, but I wanted to contribute.