We are currently experiencing a problem with links to the catalog for items that are on order. If you receive the Wowbrary newsletter, you may search for the titles in the Legacy Catalog and place holds there.
Go the USPS web site and click on the "Find a Locations" link. Type in your zip code, or, the zip code of the Post Office you wish to contact. Then, click on the "See More Results" link. Choose the post office you wish to contact, click on the name, and the local phone number should appear.