Hi, I recently requested a book that was "in stock" and which was rapidly on its way to me.  I received it a few days ago and promptly marked it received. 

This morning I received a second copy of the book from another PBS member.  I have no idea why I got two of the same book from one request. 

Someone, and I don't know if it was the person who sent me the first book, or the person who sent me the second book, will be expecting a credit and not receive it.

 I don't need the second copy.  I don't think I am obligated to give a credit for it, nor do I want to pay postage to return it.

Is there a PBS procedure for situations like this?

did your request time out and go to another member? if so, the first member who was supposed to send it probably just mailed it late. that would mean that the credit went to the member who did mail it on time.

if that is what happened you do not owe the first member a credit. go to the help section and you will find that info.

hope this helps.

Here's what the help center says:

This usually happens when the member that sent this book did not complete the sending process by marking the book mailed, but sent the book anyway.  In these situations, there is a possibility that the requestor will end up with 2 copies of the book.

If you received (or will receive) two copies of the book, you are NOT obligated to give a credit to the sender whose transaction was canceled.  If you got (and will get) only one copy, you should mark the book received so that the sender gets credit. 

There is more info in the help center- look in the section called "I received a book from a cancelled transaction".

The Help Center document "I received 2 copies of the same book!" will explain. Most likely you will receive a PM from the person who sent the book, but didn't mark it mailed asking you to do mark it received from your Transaction Archive. You are not obligated to.