So I sent them this:

Why don’t you read emails from your customers?

and in return I got this:

Dear Customer

Thank you for contacting Amazon.co.uk.

I’m sorry we are unable to be more precise about the availability of
“Xbox 360 Console Deluxe Pack “. The message you received from us
reflects the best information from suppliers we have at this time. I
realise this may cause you inconvenience, and I hope you will accept
my apologies.

As soon we are able to obtain further supplies of this item, we will
certainly dispatch it as soon as possible. As previously mentioned,
we will contact you regarding the status of your order after each new
shipment of consoles is received from the vendor.

Thank you for shopping at Amazon.co.uk.

Warmest regards

Rajesh
Customer Service
Amazon.co.uk

Perfect, no?