That's because you have to use your email address? -.-
"No account named Didileking" = Email anwser send my mojang ^^
You probably got most of it by now, but just to clear up:
Mojang accounts are unified logins for all games published by Mojang (Currently Minecraft & Cobalt, soon Scrolls). Mojang does not migrate accounts automatically - you have to do it yourself, so it seems your account was hacked.
Send an email through the previously mentioned contact form with the required details listed. Explain the situation.
If you get another retarded answer back, just contact @Marc_IRL on Twitter.
I CAN connect to minecraft.net, and my email is Didileking@gmail.com! But, i can't connect to minecraft launcher and on mojang.com :/
I add and send a twit to Marc, and email too