As an avid hobbyist from the States who spends a lot of time playing in TO, you're rates are a bit high based on what the market warrants up there, generally speaking.  Lot's of hot, quality ladies up there at 3/4 to 5/8 your rate.  It's just simple economics of supply & demand.  Until you have a track record on this board, the guys will go to those who are already highly reviewed and at a rate less than yours.

Might I suggest you offer a special to TER members who have a track record or giving reviews who contact you thru TER PM

1) a special rate on their first visit
2) another discount the next time they see you AFTER their review has been posted.  

Simple marketing but it'll work.  

I've been the initial reviewer on a few GTA ladies & they've all said that after I've left my review & it's been posted they've seen a dramatic increase in inqueries from US business men traveling up there for business.  I probably get 1-2 PMs a week from other hobbyist looking for recommendations on who to see during their trips to TO.

Hope this helps answer your question.