Commonly, premium memberships differ from each other in terms of functionality and freedom of action.It is pretty obvious that if you want to exploit the advanced features you have to pay more.
If you have any acquaintance that have some experience with utilizing dating portals then do not miss your chance to talk to them: they might be more reliable sources than strangers on the Web.
Therefore, look for those portals that give you at least some guarantees and offer you refunds in a case you become a victim of a fraudster.
As websites differ in their functionality, level of protection and quality of services, they also differ in prices.
Usually, they have a clear anti-scam policy: they invite all the girls to an interview at the office, ask them multi-sided questions that help to clarify their expectations and intentions, verify their documents and personalities.
Apparently, not all the sites have such complex attitude towards security.