If there's one thing I've learned with all these app stores and digital stores, a better way to handle this when you move countries is to create a new account for that country and also retain the older account (if possible, without a payment method, just to have access to older purchases and to free items).

Ideally, software would make sure that you can use the same account across countries as long as you can attach the appropriate payment methods. They don't do this even for content that's not controlled by giant corporations that are stuck in the past.