I noticed this as well, the only uk site i could find that is still offering the dampierre character is hmv.com. On the 8wayrun.com forum someone who'd already pre-ordered the game from amazon queried it and posted amazons response: "Hello, I'm sorry for any confusion regarding the item "Soul Calibur V (PS3)" from the order #xxxxxxxxxxxxx I'd like to inform that this was not an approved incentive and should not have been on site. We build our website information from many sources and I regret to inform that this information is misleading. However, as you have placed the order before Jan 27, 2012, you are very much eligible to receive the code for the character Dampierre."
I also send a query to amazon and they send me this:
From your e-mail, I'm sorry to hear that the info about bonus in-game character Dampierre at the time you placed this item "Soul Calibur V (Xbox 360)" is currently not listed in our website.
In order to address your query efficiently, I will need to investigate this issue with the appropriate department further. I will contact you again within 5 business days with an update. Please be aware that this is the maximum amount of time it will take for us to update you.
I hope this helps. We look forward to seeing you again soon."
I made my pre-order at 24 Jan 2012 so maybe I still receive the code...