Unable to Change Region, Add Payment Method, or Download Apps After Moving to Kazakhstan

You will need a payment method that is acceptable in your new country

Payment methods that you can use with your Apple ID - Apple Support

If you want to continue to download apps from the USA for the moment you will need a payment method acceptable in the USA. Ideally a USA credit or debit card that works.

Subscriptions will continue until the expiration date. Canceling them just tells them not to renew after that date. To have it end before that date you need to contact Apple and explain you need it to end immediately.

Click here --> https://getsupport.apple.com/solutions Enter “Cancel subscription” in the search feature, enter, then on the next page scroll down to the chat or phone call option.

or:

Contact Apple for support and service --> "See a list of Apple phone numbers around the world." Click here --> Contact Apple for support and service - Apple Support

For a general outline of changing country, read Change your Apple Account country or region - Apple Support