I recently contacted a provider and was instructed to complete a light screening process on a website; ESCORTCHEX.
 I gave them my credit card# because I thought that would pay for my background check. It turns out this is a porn site and with phony single adds, that would start billing me monthly.  They are based in Germany. My credit card  fraud deptartment disabled my card because this site raised red flags.  I've  since straightened out my credit card and become a little wiser