I actually have no clue why the CD my friend sent me isn’t working to be honest.
The sender was from the UK, that’s the only reason I’d think it’d not work but wouldn’t keys be global?
Hey, StormWulf1!
You may need to claim it on the eu.battle.net website. If you are still having trouble, please contact support at: https://support.blizzard.com/ ad we can give you the information needed to resolve the problem. 