This has only recently been asked in this thread:
https://www.ukpunting.com/index.php?topic=291054.0My response on there was:
The best recommendation for VS is to steer clear of it. There are a lot of exceedingly enticing profiles on there, but almost all are fake. In my experience, any decent SP on VS will also have a profile on AW - if she doesn't, there is probably a good reason. Not that having an AW profile sets the bar very high, mind.
At the very minimum, do a Google search of the phone number, and image searches of the pictures. You will find that most of the images are lifted from porn sites, and the phone numbers often reappear in many different ads for very different girls.
For example, doing a google search of the ad the OP posted, brings up ads for three very different girls. I would say this is a Romanian b&s operation, and the chances that you will get to see the advertised girl are negligible.