Are you at least aware of the basics?
Bait & switch tactics along with false/outdated/photoshopped photos are common the world over. Whilst no guarantee, the more you (& others) think "this is stretching my budget" the more likely you'll get an accurate representation.
Your level of Japanese & personal behavior is also a factor even in the "Gaijin friendly" places, & not All girls will service Gaijin, with having 3 girls out of a roster of 10 being Gf.