I moved to Canada and I want to change my country of region from USA to Canada, but when I try to change it ( by click on my account in the iTunes Store and going to my Account Page) it showed me this error: "You have a store credit balance; you must spend your balance before you can change stores"
Change your Apple ID country or region – Apple Support Jan 10, 2020 Change your country or region in Microsoft Store Apr 21, 2020
Apr 21, 2020
You can directly change your country/region from iTunes on the computer. This will work on both Windows and Mac computers. 1) Launch iTunes on your computer and click on the profile picture to access the account menu. 2) After that, click on the “ Account Info ” option from the menu. How to Change Country on App Store!  - YouTube
Change Your Language and Marketplace in the Amazon Assistant. Amazon Assistant will be shown to you in the language and corresponding Amazon marketplace based upon your geographic IP location. However, you can change the default.
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