If you have accounts with them then your out right?
EDIT by admin to answer Q:
You can enter the contest and are eligible for full prize. Here is what you need to do:
You need to enter three of the accounts you have. If you win, you will be asked to supply ALL of the submittable accounts and SBR will verify that each existed BEFORE the contest sign-up date. If the winner is unable to provide the account he will not get the prize. For example, the player has accounts at all but one sportsbooks but failed to signup for the new account, he will receive 66% of the total prize.
