Your registration link is sent in a separate email after purchase. It will be sent to the primary email address associated with your Labcorp OnDemand account (the one you use to sign in), which may be different from where you receive other emails from Labcorp.
If it’s not in your inbox, check your spam or junk folder. If you’re still having trouble, contact Labcorp OnDemand Support and we’ll make sure you get access.