Cannot receive passsword reset link on alternate email!

Hi I have a email that I need to use for my Xbox Live, but I can't remember the password to it. I've tried many times to reset the password, and it does say that they sent the reset link to my alternate Gmail account. However, I still haven't received it, so I think they might have sent it to a different email of a similar name. Is there a way to change the alternate email so as to receive the reset password link?? Btw I cannot do the advanced option of verifying my account because I forgot what I wrote as particulars. So this is probably the only way I can get my email password restored and use my Xbox Live properly again....