How to redeem your Apple Gift Card (US) on iPhone, iPad, or iPod touch?
Get the 16-digit code from your SEAGM account
On your iPhone, iPad, or iPod touch, open the App Store app.
At the top of the screen, tap the sign-in button or your photo.
Tap "Redeem Gift Card or Code." If you don't see "Redeem Gift Card or Code," sign in with your Apple ID.
Tap "Use Camera," then follow the onscreen instructions. If you have trouble redeeming the card, tap "You can also enter your code manually," then follow the onscreen instructions.
Tap Done.
How to redeem your Apple Gift Card (US) on Mac?
Get the 16-digit code from your SEAGM account
On your iPhone, iPad, or iPod touch, open the App Store app.
On your Mac, open the App Store.
Click your name or the sign-in button in the sidebar.
Click "Redeem Gift Card."
Click "Use Camera," then follow the onscreen instructions. If you have trouble redeeming the card, click "You can also enter your code manually," then follow the onscreen instructions.
How to redeem your Apple Gift Card (US) on Windows PC?
Get the 16-digit code from your SEAGM account
Open iTunes.
From the menu bar at the top of the iTunes window, choose "Account."
Choose "Redeem."
Sign in and follow the onscreen instructions.