Thanks everyone for your replies. I just had this email from Zavvi:
Thank you for getting in touch to ask about the estimated dispatch of The Fifth Element - Zavvi Exclusive 4K Ultra HD Steelbook.
I am really sorry that this has not yet been dispatched. The Fifth Element - Zavvi Exclusive 4K Ultra HD Steelbook is on special order for you with our supplier but at this time they are unable to give me a date for when they will have it back in stock.
You can check the status of your order at any time by logging into your account and following the prompts. Once your order has been sent you will receive an e-mail to tell you it is on its way.
If there is anything else that we can do, then please do not hesitate to get in touch and a member of our team will be happy to help.
I think we all know what that means by now: we don’t have any left despite the fact we’ve taken your money. Please enjoy being given the run around by us until you lose patience, cancel, and wait for us to eventually refund you.