I am relatively new at hobbying, can anyone give me some advice:

I recently e-mailed a provider, who I really liked and have seen several times, to set up another appointment. There was no response. I thought e-mail could be unreliable sometimes, so I e-mailed again. Again no response.

I was a bit surprised because I thought we were on good terms. Should I just give up or should I try to find out why she is not responding? If I've done something wrong, I'd like to correct it...

Providers have personal lives and some take themselves off hte market monthy.  I would suggest you go back and review her website - is she listing a new email address or phone or is her site no longer in service?  This may give you insight into her current status.  You may also want to review your review, were you fair and positive or overly harsh?  Ladies have feelings, and you should remember that they can see what you write.  I would give it a rest, and monitor TER.  If you see that she remains active, then try to connect with her.  I recall once a particulary fantastic provider went into a total black hole for several months.  She resumed her practice after 3 months and we were able to renew our contact.  However, it is to your advantage to have several options, because many providers move about or quit after a short time.

Sometimes the real world gets in the way of a provider's business.  Keep an eye on the local board and when she reappears, you can contact her.

Meanwhile, there are plenty of other wonderful ladies around to see.

Let her know that this will be your last attempt at contact.  The ball is in her court from there...

Give her time to respond.  I usually don't work well with a lack of response but then again I sit at a desk all day answering e-mail.  My ATF has gone 7-10 days without responding to messages, she's fantastic, we have a great rapport so I just accept it about her and if I needed an emergency booty call I'd just call her.  

This is a tough time of year as a lot of providers travel...home with family, vacationing, etc...so she may just be "away".  Did you think to check her site to see if its updated with travel plans?

start a to do list. Use the ter favorite feature to keep a list of ladies you want to see. I think you've emailed her enough. Look for a new lady and keep your eye our for someone new Good luck