I very new here to TER and to the hobby. I spent time reading the posts here alot and found a provider who I am interested in. She has fairly good reviews and is a individual provider. My problem arises in the contacct.

I emailerd her at the email provided in her ad. I received a reply to contasct her at a second email address which I have done but still no reply. I then found an old Backpage ad of hers with a thord email, emailed that and got a reply it was shut down. I even PM'ed her here and she has not read it.

All of this has been going on for a week approximately. Am I being inpatient. Is there something else I need to do to get her to reply? Or is shje brushing me off?

Advise from providers is also welcome

I think a week is more than long enough to wait before moving on.

There is a possibility she is on vacation.  In that case she will probably respond when she returns.

However, you cannot be expected to wait.

If I don't get a reply within 24 hours (or 48 hours for someone I REALLY want to see), I just move on to the next lady on the list.

Move on, everyone knows what it's like to be a newb. When you finally make the decision that this is the escort you want to see, it can be hard to change course. Do yourself a favor and find someone else. Most old timers have a list of escorts they want to see. I recommend you start a list.

or who lack interactive skills.

Stop looking for *new* ways to contact her!  You found an old unused email and tried that.  You tried to pm her and perhaps she does not do pm here (many ladies don't!)  It's quite possible that her ad email was on an auto responder and you have never actually reached her.  You are making it more difficult than it needs to be.

Her request was to be contacted at the second email, perhaps in an attempt to keep her scheduling communications separate from her advertising information.  I can actually see good reasons a lady might do something like this even though I don't.  (Hard to update ads, email accounts flooded with spam, security concerns, etc.)

You sent one email to the second account and no reply.  Is it one week since you did this or one week since you initially replied to her ad?  Perhaps she was traveling and/or on vacation.  Perhaps you hit her spam folder?

If you want to see her send a second polite email to the address she requested that you use. Ask if she got the original email and restate or copy/paste the contents.

24-48 hours is not unreasonable to wait for a reply.  If there is none (and even if there is a reply!) I agree that you should keep looking for other providers that you are interested in.

are not all that weird.

Ladies can spend a lot of money on advertising, and some will use different email addresses to be able to see which advertising brings the most results.

Old email accounts being shut down is also not odd.
The ladies put their email addresses out there for clients to find, but spam bots and weirdos find them too...so after sometime, it is often easier to get rid of an account that is deluged with spam and start another account, rather than trying to weed through a lot of junk to find a legitimate request.

Take Miss Sola's advice, try one more time, with the email address you were sent, it could have gone into a spam folder, she may have been unable to check her email for whatever reason...
give it one more try, and if you don't get a reply move on.

In a week you have tried to contact her at least four times...was it just one email or PM to each account from you in that time?  
or have you sent multiple emails and PMs?  If just the one, then, as said, try one more time to the address you were sent.  If it was multiple emails...you may appear kind of needy and a touch pushy and she might just ignore you.

Also, did you write anything in the email to the second address that could have caused her to not want to reply?   did you get more "specific" in the second email where she may have had red flags go up?