There is a very convincing Cath Kidston website, name of cathkidstonofficial [dot] uk.com
I had my basket loaded up with (it turns out, too good to be true) items. I'm usually very canny but it was my daughter who noticed that there was no contact details given for the company, and a description page had just the wrong tone to be legit.
I've found a few threads on this website going back to August - people have lost money. I can't believe it's still going!
My daughter has reported it to Next (who now own CK). She spoke to their fraud dept and said they seemed shocked. Personally I'm shocked that they wouldn't have has this flagged up massively, after 4 months in action at least.