Apple ID and App Store troubles

Here are the rules. Check them out.

Change your Apple ID country or region https://support.apple.com/en-us/HT201389See this heading especially What to do before you change your country or region

Use this link in the document if you need to View your Apple ID balance https://support.apple.com/en-us/HT202359

If you can't complete any of the steps, can't change your country or region, or you have less store credit than the cost of a single item, contact Apple Support. Note that you could just purchase something of value greater than or equal to the amount of your store credit or ask iTunes Support to zero out your account balance using this  iTunes Support Form https://support.apple.com/en-euro/itunes-contact

And you also can contact iTunes worldwide support via text or chat using this link https://support.apple.com/choose-country-region/itunes. At the bottom of your screen use Tell us how we can help to select among support options. You should be able to get telephone or chat support.

What happens when you try to change to another store? Error message(s)? More information would help.

You do or don't have a payment method on file?

Apple ID without a credit card      

Apple ID - If you can‘t choose None when you edit your Apple ID payment information.