I had a book that I mailed to a member quite awhile ago, but it never got there and was marked lost by PaperBackSwap. I just heard from the recipient and the book finally got to her just today, about four weeks late. She's wondering how to get my credit to me for the book. And being fairly new here I'm not sure what to do. HELP!

They need to go to their Transaction Archive where they can mark the book RCD.

From the Help Center:

I received a book that was 'lost in the mail' When a lost book arrives, you must mark it received. To do so:

• Go to your Transaction Archive:

  • From My Account: click the link "Transaction Archive" in the yellow bar at the top of the page
  • From anywhere on the site: place your cursor over My Account in the toolbar at the top of any page on the site and choose Transaction Archive from the menu that drops down
• Sort the Transaction Archive by "Requested by me" - "Lost in mail" - "Title" - "Descending"
• Locate the Lost transaction for this book in the list.
  • If there is more than one Lost transaction for this title, check the sender's name on the right of the transaction against the name of the sender in the return address on the package you received.
  • Click on the transaction.
  • The next pages are the regular Book Received pages: Click on the next page Provide more information about the swap on the next page
    • you will also have the option to send a message to the sender of the book
    • you will also have the option to provide comments on the swap that only we will see
• Both your account and the sender's will be updated when you have done this.

Lost books must be marked received when/if they arrive, to keep your account in good standing.

Hope this helps :  )

Thank you! That worked and she could mark the book received and I got my credit.

This is why they suggest you wait a couple weeks before buying or reodering a lost book.  Sometimes they get sent to the wrong state and get delayed.