We posted a link to a non-official support site that we probably shouldn't give attention to. Anyway, please don't give your information to anyone other than help.minecraft.net.

Hello, So I didn't use my e-mail for quite a time and it happens it got deleted, so I can't log into it to secure my account which I didn't use for a year. I wanted to change e-mail address and can't cause to do so I have to log in to the current, not existing anymore address.