Unable to Change Country/Region

I do not have unspent balance or pre-orders.

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See and follow the steps described in -> Change your Apple ID country or region

Change your Apple ID country or region - Apple Support (KW)

•  Cancel your subscriptions and wait until the end of the subscription period. 
• Make sure that you have a payment method for your new country or region. See what payment methods you can use.
• If you still can't change your country or region, or you have less store credit than the cost of a single item, contact Apple Support.