Hi, i want to buy a xiaomi note 4 or 4x. But it needs to be the global version and with band 20. An official one as installed at the factory with official OTA updates. Can anyone recommend a seller in the uk for this? I did place an order with gearbest in china.....but gave up on that. No response to a query about a phone. Placed order, then order caancelled next day with no explanation. Weird. S...,uk seller please. LAstly....anyone know how you can actually tell if a phone has the bands when you receive it? Thanks.