I had an email this morning apparently from Amazon.co.uk saying that I needed to update my account details within 24 hours or my account would be deleted.
I was immediately suspicious and, needless to say, I didn't click on the hyperlink.
I did a Google search of this scam and found THIS SITE which explains how the scam works.
Basically, you click on the link, get a page that looks like the Amazon signing in page, you enter your password and that gives the scammers enough info to access your account and use your stored credit card details to buy themselves lots of goodies at your expense.
Amazon will NEVER contact you in this way for details and, no matter how official it looks, do not fall for this scam.