A user missed a hold that was ready for him/her, but never received a holds notification email. What happened?
If the user was recently issued a new library card number, the title on hold may have been associated with the old library card number. Contact our Support Services team via the Support tab in OverDrive Marketplace.
It is also possible the user’s email provider blocked the notification. Whitelisting the sender email address firstname.lastname@example.org should help ensure this does not occur in the future.