iTunes Gift Card - US$ 300

How to Redeem Gift Card

To redeem on your iPhone, iPad, or iPod touch:
On your device, open iTunes Store App.
Scroll to the bottom of the Featured section and tap Redeem.
Login with your Apple ID.
Tap “You can also enter your code manually.”
Enter the 16-digit code, which starts with X, retrievable from My Game Card Page.
Tap Redeem. After redeem is successful, your iTunes account balance automatically updates.