I need to empty my Apple ID balance

Contact Apple Support directly, they will help you clear your Apple Account balance, click -> Get Support

Fill in the field >Tell us what's happening<

If you then want to change Country or Region, you must comply with all regulations described here -> Change your Apple ID country or region -> 

Change your Apple ID country or region – Apple Support (UK)

Buy something with a credit card and use your 12 cents balance. You’ll be left with 0$ in your Apple Account