How can I empty my App Store credit?

First, cancel your subscriptions and wait until the end of the subscription period.

Second, make a request to zero out any remaining balance on your account by contacting Customer Support by phone or chat:

• Chat now or call 1-800-APLCARE.
• International Support.

—Then—

Click ▶︎ Change Region. 🌐

Hey there,

You have to contact The official apple support team to help you with that ☞ Contact Apple for support and service - Apple Support