C-36 does not bar a lady from advertising sex services.
She is reluctant to do so, however, because of the danger, with such advertising, that a customer might have a hard time convincing the court that he was not paying for sex.
To get round that, the lady might have two sections side-by-side on her web-site. One can be headed "sexual services", with explicit information about what she offers.
The second section would be headed, "platonic companionship", here again with explicit information about what she offers -- being things connected with companionship -- dinner dates, companion for functions, etc, and nothing that could be classed as "sexual services".
Her website would have a third section, in which she set out the incall/outcall info, dates & times, availablity, cost per hour, per overnight, etc -- the same $$ for her time under both headings.
Then, when the dude is stopped and questioned on the way in or out, and is faced with evidence that money changed hands, he says he's only there for the companionship side.
Who's to prove otherwise? What does the beyond-reasonable-doubt-proof look like, that he was there to pay for the sex side?