Yatango are useless. And they don't have stock of anything. They pretend like they have a warehouse, but they actually don't. When you place an order, they keep your money for as long as they can, that way they make interest on your money for a month, and in the meantime price of the phone you ordered go down in HongKong so their profit margin increases. This is how Yatango can offer prices lower than everyone else. Stay away from them if you can – you won't see your phone for at least a month, generally speaking. If you do, it's a total fluke.
And good luck getting your money back if you cancel your order.