Good day to you too!
It looks like the first charges are the temporary authorizations from when the orders were first submitted. They should expire from your account in the near future, as it was they were not used to create the final charges when the orders were shipped. You have only been charged once by our system.
If you would like some more details about how our billing process works, you may want to check out this FAQ:
http://paizo.com/paizo/faq#v5748eaic9n0t
If you have any other questions or concerns, please let me know.
Thanks!
Sharaya