How do I clear my Apple Account balance without chat support?

If you can not reach out to the official Apple Support by using this link, contact Apple Support , you could also buy an app or content from Apple, which costs slightly more than the remaining Apple Account balance, so that your secondary payment method will be used to charge you for the rest of the payment.

After that make sure, that you did not miss any other steps mentioned in this article, which would keep you from changing the country/region for your Apple Account:

Change your Apple Account country or region - Apple Support

If you do not have another payment method or can not add one, you will have to contact the official Apple Support.

Click on this link to get started:

Contact Apple Support