It will be very hard for you to gather some information according to your problem about forgetting your passworf that has a lot of bitcoins, because anyone can say that they have a wallet which is forgotten or hack and they want to recover it from those necessary problems. First, we must verified that the account you are talking about that has been forgotten was really yours and if the account is have some email binding in which you can prove that it is yours. Second, you must provide that this account is yours by filling up the necessary details in order to recover the account that has been lost.