- Roblox app interface does not allow you to redeem Gift.
- You may use your mobile browser in order to redeem the card.
To redeem gift card :
- Go to Roblox.com/redeem
- Login to your account using user credentials.
- Copy and paste your code in the available box.
- Click on Redeem and that is it.
- You can also convert your money to Robux immediately.
Need more support, feel free to comment below.