You can view your usage history in your account under “My products” > Click your number > “Usage”. You will see a summary of all of your data sessions, incoming/outgoing calls and incoming/outgoing text messages for the number that you selected.
In the Viking App, you can view your usage history under the tab (drum roll...) “Usage”. That says it all... ;-)
Note that it’s quite possible for a data session to be active for days at a time. It will depend on the type of device. You can force a data session to close if you put your device into airplane mode or restart it completely.
Don’t see your recent usage immediately? Wait for a while! It can take up to four hours to process your usage.