Here are 3 UK boards.
http://www.boxa.net/forum/index.php?http://www.boxa.net/forum/
http://www.porscheclubgbforum.com/
http://www.porschaforum.com/forum/index.php
If you ask on the Porsche Club Great Britain board ask for Richard Hamilton. He and people he knows can code a replacement key for you. Problem is your OPC needs to supply codes to do this and you can't even prove yet that you own the car. The other problem is, once this is sorted out, whomever does the programming has to have your car in front of him, unless he will go to the car.