Yeh, I did have a google around, there are a couple of agencies in the UK that offer it (not sure there are any down here though) but all of them are professional cleaners "only" and explicitly state no touching.
Weather you could negotiate something with the girl or not, i guess that's between you and her. Probably not though. They also have a ban-list if you do something that crosses the line so if you want anything more than actual cleaning with her bits out, that's probably not the route to go.
This is why it raised an eyebrow when I noticed this SW offering it. If she does other stuff, and this is just a side hustle, it would probably be possible to get a clean, and a "polish" in the same visit. She said she was on tour down her, and normally from up north somewhere, so i didn't look into it too closely otherwise i would have hot-listed her. Cant find her account any more tho. And searching words and phrases related to cleaning didnt pop up any other SWs who offer it.