Unable to change App Store region due to outstanding balance

Apple requires a zero balance to switch regions. You'll need to either spend that remaining amount on an app/purchase, or contact Apple Support if it's too small to use. Once it's zero, you can change it!

What you can buy with your Apple Gift Card or Apple Account balance - Apple Support

Change your Apple Account country or region - Apple Support

If you are changing regions:

PART 1:

Cancel your subscriptions and wait until the end of the subscription period. ⇣

PART 2:

Make a request to zero out any remaining balance on your account by contacting Customer Support by phone:

• 1-800-APLCARE.
• Contact Support.

PART 3:

Click ▶︎ Change Region for step-by-step instructions. 🌐

Good luck! 👋🏼😉