The following was posted by Bryan Roth on FaceBook. Click on the link to request an Adventure Lab Geocache, if you don't already have one and meet the requirements listed.

If you are a current Premium Member, have found 2 Lab Caches, and don't have an active Adventure or current Lab Cache credit, submit an application for a credit here and you will get one. Note that, depending on how many people request a credit, it can take weeks or even months to receive one.
https://www.geocaching.com/play/request/adventurelab