For information on preparations to get to this step checkout the How do I redeem my Ada? section.
If you didn't manually went through the vending process via the AVVM, and the delivery of the force vending email couldn't be verified then this is the kind of vending certificate you have.
- Enter the Paper vended tab
- Select the wallet you want to redeem to and enter the password
- Enter the shielded vending key from the first letter
- Enter the passphrase from the second letter
- Click the Redeem your Ada button on the bottom