Black Ops 6 battle.net Code Stolen & redeemed

Hey,

Can anyone please assist in anyway?

I have just had my Call of Duty Black Ops 6 battle.net code stolen. It has since been redeemed and I have no access to this person,the account it was used on, or know what I can do about it.

Is there anything I can do, or any support battle.net could offer in this unfortunate situation?

I would also like to know if the key could be revoked from the account it was used on.

Any advice appreciated, thank you.