Do you need to login to your CAMPS or else?
You may claim your account thru the following link
https://camps.intuit.com/app/selfservice/index.html#claimAccount
If you don't have any access to the registered email, I am not sure Support will recognize your claim for the license ownership. You may need a 3rd party password reset for your company file to open it later. Then consider purchasing a new QBD license.