I can’t change the region.

We can't as no one here works for Apple, but you can contact them directly here:

Contact Apple Support - Apple Support

P.S, Never post your Apple Account on a public site such as this. You are inviting scammers to contact you claiming they are from Apple and once you give them your Passcode (and any 2FA verification code), you have lost access to your account and they can even mark your device as lost preventing you from using it. I have asked the moderators to remove it for your protection.

Welcome and thank you for reaching out. 🤗

Here at the Apple Support Community, we are volunteers (thoughtful Apple users) who share knowledge in an effort to help others, such as yourself.

We don’t have the power to look into accounts, make changes or remove the balance.

You will need to → Contact Apple Support to request a reset of your account balance to zero.

Thanks again for reaching out. 👍🏼

All the best! 👋🏼😉

Smiliñ 😎 Brian | Community Volunteer

Hello ~ We are your fellow forum members and have no access to your account. We can however point you in the correct direction. If you are trying to zero your balance before changing regions…you may purchase an item from the App Store for more than your balance and the remainder will be billed to your credit card on file thus zeroing your balance . You may also go to lower left hand corner and click on Support and they can zero it for you or…

Contact Apple for support and service

Also if you are changing regions take a look through this article as well…

Change your Apple ID country or region - Apple Support

~Katana-San~