Go to Settings and then click on the Payment tab:
Then scroll down to Addresses:
Click on Add new address and a new screen will appear. Add your address there and click Save.
If you want to delete an address from your Gameflip account, click on the Trash Can icon on the right side of the page, next to the pencil icon:
Note: When entering your address, please don't use any special characters, or you might get a verification error when trying to save it.
In the app, you'll need to tap the 3 white lines to open the menu, then tap Settings and Billing:
Tap on Add a new address and enter your new address information then tap Save:
The edit an address you just simply tap on the pen and paper icon on the left side of the address. If you'd like to remove an address, you can click on the pen and paper icon and then tap on the trash can icon on the following page.