The itunes store is unable to process gift certificates at this time
iPhone 11 Pro Max, iOS 14
User profile for user:
nick_h2
User level:
Community Specialist
Hello Nicholas3668,
We see you have an issue with redeeming the balance. We have some steps that can help.
If you can't redeem your Apple Gift Card or App Store & iTunes Gift Card is a good article to start with and goes over the suggestions for your concern.
Verify the System Status to check if this is reported.
Last you'll need to Contact Apple Support
We hope this helps.
Cheers.