In any case, getting an attny to look at potential causes of action in your state and sending their legal dept notification of intended action is likely to get FB's attention much more quickly than a user request.
Your state Attny General office may also be helpful, again, depending upon what state you reside/work.
(Of course, as mentioned in earlier comments, the simplest situation may be to cancel the ccard, and make sure that they don't transfer the charges to the new one if you have it reissued in a new number).