The links below will grant you direct access to the various subscriptions. Do note that you will need to be logged in with your WebUID but your PT number assigned will not be needed.

SAP Learning Hub - direct access

SAP Cloud Certification - direct access

SAP Learning System Access - direct access

NOTE: You will still actually need to have a PT number within these systems, by using these direct links though, the normal license checks are bypassed, and if your subscription has expired the relevant learning system will not grant you access.