A few months ago, I created a simple youtube video for a client. It was created using free account on animoto. Now, my client emailed me that he wants that video to be deleted. My big problem right now is I already forgot the email used in that account. I've tried to log in using the username but youtube says I need to log in using the email on the account. I still remember the password but can't really remember the email. Is there anything I can do to retrieve the email of that account? Or, is there any technique were in I can take down that youtube video like logging in to multiple accounts and then flagging that video? Help will be greatly appreciated.