as far as I know, changing an address is near impossible. I have moved states, for instance - within the USA - but my state ID with amazon remains the same.
I have no idea about countries, but I would expect the same. But keep in mind it's not your ID - you have to submit proof of your country, bank infor (honestly I forget what I had to submit it was a long time ago). Anyway, the answer to your question is I doubt it. Once you have an account the information is hard to change