Does anyone have a spare Harlequin code for Assassins Creed: Brotherhood Xbox 360 please?

I went to HMV today because on their website it said you can have a harlequin code if you buy it from there but I don't have a harlequin code in my case so I was wondering if anyone could give me their code or tell me where I could get one relatively cheap (£10 or less and I've tried ebay and amazon and they're too expensive there). I know I'm probably not going to get one for free unless you are extremely kind so I'm willing to offer something in return. I'm not sure what so if you have a code tell me what you want and I'll see if I have it.