I find that contact through P411 almost always ensures a response. You might also try using the provider's contact form, if she has one on her site, rather than email. You might also try using TER'S pm system. Each of these options shows a level of seriousness and knowledge of how our hobby works that a simple email lacks.

All of that lets the girl know you are serious and not a potential time waster. Now I don't do that in every case, as I have questions sometimes, but since you are new and having trouble that is the road I would choose.

Also remember, she may not have gotten your email (it happens) and you may have used an old, no longer in use email for her. Use the one from her website, not the one on her TER profile. But when you recontact these gals, and there is a discrepancy between the two emails, use both.

Don't forget many are part timers in this biz, take breaks, go on vacay, etc and don't check their inbox 24/7. I would give a girl 2-3 days max, and hit her up again and ask if your last email possibly went to spam. That happens quite frequently as well.

But two strikes and she is out, for the time being, as you don't want to stalk her. You can try again in a few months if you still want to see her.

Never mention money and sexual acts in your emails.  That puts you on do not see lists sometimes.

The point about requesting a specific time, length of time, and place for the hook up is very good advice also.

Have you read the Self Help Manual linked on this page yet?  It covers a lot of these points

Looking at the wrong providers. Either bottom shelf girls or girls who state that they prefer to be contacted by phone.   I prefer email myself at least initially.