I can't access my mojang account

I was playing minecraft yesterday until about 3 pm, then when I went to open it again shortly afterwards, my game just didn't come. I went to log in to the mojang site because it had happened before, but now I was not able to log in to the site either.

I asked to send an email resetting the password, but it has not arrived until now (since yesterday).

I want to know where my account is and why I can't access it ??? I have it since 2013 and I don't understand why this is happening.