You should open a support ticket with the Help Center (https://khanacademy.zendesk.com/).  They may be able to restore the account.

Hi jcrosario,

Could you please report the issue via a support ticket: https://support.khanacademy.org/hc/en-us/requests/new?ticket_form_id=182807

This will allow us to further investigate the issue and help you regain access to the account.

Thanks!