Thank you for contacting me regarding this issue. If your keys are in use, then they have already been claimed to another Battle.net account. At this time, legacy titles cannot be removed from a Battle.net account. If you would like to see this as an option in the future, please feel free to post your feedback on our Battle.net suggestions forum at http://forums.worldofwarcraft.com/board.html?forumId=11122.
If you have any further questions please feel free to contact me directly or give us a call. Billing representatives are on hand to take your call seven days a week between 8am and 8pm Pacific Time, at 1-800-59-BLIZZARD (800-592-5499). Customers in Australia should call 1-800-041-378.
Are you serious? I have never claimed them. This is ridiculous. Well looks like I'm going to send them another email and if that doesn't work I will call them. If that doesn't work, I will refuse to buy another Blizzard title. I won't be sad. If this is how they treat their customers, by making them post feedback or and option in the future, and we all know what the future means with Blizzard. I am seriously disappointed in Blizzard.
Oh and I've even offered to provide them my cd-keys.