Thanks for reaching out to us. We'll gladly help you out.
Let's try following this troubleshooting to see if you can find the account on your end and reset the password.
If you're unable to find the account, the best way would be to contact our Support team via Twitter or Facebook. They'll be able to track down any email addresses, usernames, or your payment details to help you out.
“Music acts like a magic key, to which the most tightly closed heart opens.” ― Maria Augusta von Trapp