Created Account with Wrong Credentials, Looking to Delete Account

While creating my Musescore account I accidentally had my Google autofill input an incorrect username and fake email (one that did not exist). This account also happened to have my credit card information attached to it. Having gone to the settings, I realized that I cannot make changes to the account without first verifying my account (which I cannot do since I do not have access to the email address). I am looking for help to delete this current account.