Welcome to Android Central! Can you describe how it didn't work for you? Are you certain that it won't work for anyone in this situation? It's still the most official account recovery option I know of, so I will keep suggesting it. For users who are prone to forgetting crucial information like their Google account (i.e., crucial for Android users), the best way to avoid having to resort to this is to physically write down the information and keep it somewhere secure, like a safe.