For calls, log into the appropriate account with the account owner profile login. For messages, log in to the messaging app/web access using the profile login of the number on the account that you want to see the messages. Can't be sure all the messages will be sync'ed properly for you to see (see related threads).
We would be happy to help! Are you trying to review your messages and your call log? You can find your recent messages found in your default messaging app, and locate your calls phone in your Phone app. Does this information help? MichelleH_VZW