Hi,
This is what's on blockchain. You would need the email address you were using. Unless someone else has a solution.
Lost Identifier or Alias
If you have lost your wallet identifier first check the confirmation email you received during sign up. Can't find the email? Click the button below and we can send you a new one.
Recover Wallet Import Backup
Lost Two-factor Authentication Details.
If you have lost your two factor authentication details your wallet is still fully recoverable. All we need is reasonable proof you are the account owner which can be provided by completing the form linked below.
Reset Two Factor Authentication
Lost Password
Your wallet is encrypted by your browser before it reaches us and for this reason we are unable to help recover lost passwords. To avoid any possible monetary loss due to forgotten passwords it is recommended you make a paper backup of your wallet's private keys.