This morning I almost ran into the same pit of creating a new subscription to my existing Azure profile where Denmark is the assigned country. I remember I had long discussion with Microsoft on this, but resistance is futile and in the end they just said it’s not possible to change country. This ridiculous restriction is by design. period.
I would like to be billed from where credit card is issued, Malaysia. This would save me from FX difference. I am also afraid the prices are more expensive in other regions and I may have to pay Danish tax rates in the future.
What can we do then? The only possible solution is to create a new Azure Profile with your desired country and create new subscription on it.