How to clear Apple Account balance to change country/region?

Buy something more expensive than your balance and pay the rest with a credit card or if you have less store credit than the cost of a single item and cannot add a credit card to your account, contact Apple Support so they can clear it.

Click the blue link above to have Apple support clear your balance.

You need to contact Apple support directly to have the balance cleared.

Click on the link above, and there should be a chat or call button there.

here it is again: click here ➜ contact Apple Support to clear your balance

Alternatively, you would need to add a payment method from the country the Apple ID is set to currently.

Borrow one just for that purpose and remove it once the balance has been used up.

Apple Recommended reply for question about contacting Apple Support if you are in Iraq --> How can I contact with services in Iraq ? - Apple Community

This support article Contact Apple for support and service - Apple Support

says, "If your country or region isn't listed" to go to Choose your country or region - Official Apple Support

It then has a link to the "other Middle East" support page which has a link about what to do if your forgot your Apple ID or password.

Where are you located? Apple does not provide anything but documentation support in some places.