Thread:Sam Wang/@comment-5032644-20120428010024/@comment-4316832-20120428012108

You can only if you have a confirmed email-address (you can confirm it in Special:Preferences). After, log-in to your email, then you should find a message which makes sure you know you have sent the request, and replying to the message will add more to the question. However, the question may sometimes not be answered until the next day, or even later, so please be patient.