I’ve been unable to verify this myself, because the line has been busy, but if you have any intention of buying a preowned copy of Arkham City on the 360 at some point down the line, you can currently get a free Catwoman pass, to save you some money further down the line.
1. Call 0207 984 6480.
2. Tell them you bought the game in Asda today and were told to call this number for your missing Catwoman code.
3. You’ll need to give them the location of your nearest Asda, and a name (will not have to be your real name) and an email address (where they will send the code)
4. Wait a few hours, and you will be emailed a code.
Cheers PenLlawen for the tip off.