Here are the steps you’ll need to follow to redeem any Roblox Gift Card. Go to the Roblox Login Page on your browser. Enter your username and password to log in to your account.

Change Roblox username or Roblox display name When you initially sign up to play Roblox, you must give your Roblox account a Roblox username. Other players will see your Roblox name in game.

How to change my Roblox password If you've forgotten your password you just need to click the Forgot your username/password? link on the Login page.