If you’re like most people, you probably don’t know your PowerUp rewards number. But that doesn’t mean you can’t get the benefits of PowerUp rewards. To find your rewards number, go to powerup.com and sign in. On the main page, under “My Rewards,” click on “View My Rewards.” On the next page, under “Rewards History,” you’ll see a list of all your past transactions and rewards earned. Look for the transaction that corresponds to when you first started using PowerUp (usually this will be a few days after your account was created). The reward amount for that transaction will be listed next to the “Reward” column header. ..