This is a scam. A Roubaix caught my eye, looked genuine and close to home. Seemed to be one of those 'bought, used, don't want to do it anymore sales', the description matched perfectly to the photo, even down to the Roval Fussee Star (now rare) wheels, the DA groupset and S-Works cranks.
I made an enquiry, and had an email saying please contact direct via this email account.
Out of scepticism and general 'buyer beware principles' I Googled the email address, and all of the UKash stuff came flooding out from Police press releases etc, oddly relating to hi-fi equipment, but warning consumers that this is very much a scam.
I reported to the selling website where the item was advertised, but never got a reply. The following day, a new advert, with the same location (oddly a B&B type place), for a Venge appeared....
As they say, if its looks to good to be true....!