When you apply for and get approved for a Fizz card, you'll immediately be able to add your card to your digital wallet. This doesn't require any activation on Fizz's end. Just hit "add to wallet" and you'll be guided through the steps.
When it comes to activating your physical card, you'll need to make sure that you've received your physical card in the mail. Once you have, you'll be able to activate your card in the Fizz app on the card screen. It's as easy as that!