Most reliable place to purchase a official Xiaomi phone?

[Android Central Question]

I've been doing some research and I found out that there are resellers that sell versions of these phones with fake Global ROM and ads. There are some users that have never seen these things upon obtaining an official one so I've grown skeptical buying the unofficial "Global Version" phones. I've tried going onto the Xiaomi site but cannot purchase anything. Sources to buy from openly are Aliexpress , ebay and Amazon and maybe a few other 3rd party resellers.

Is there anyone that has an official version or a version that does not display ads by default? I'd like to know where you got it.

Is there an anticipated date when official International phones from Xiaomi will be released?