If you do have several services, for example, NordPass and NordVPN or NordLocker, the login to your account will be the same if you have used the same e-mail address for registering.
Nord Account connects all of the Nord products and the account for these services is one - with the same credentials. To login into your Nord Account, go here.
However, for unlocking your NordPass vault, the need to enter your Master Password will remain.
Find all about the whole login to NordPass process here.