"User not premium" but having a Minecraft Premium Account

[BigCreeper124]

Hello support team, a few days ago, i've bought Minecraft premium und wanted to play FTB,
ive downloaded the laucher and so on, but when i want to log in, it says "user not premium"
what can I do?
(i write in the login window e-mail adress, password and username)

(sry for bad english )
hopes for answers, BigCreeper124

 

[Marcel van Dongen]

Are you able to play vanilla Minecraft? If not, then your problem should be directed to Mojang.

 

[Nerixel]

Please try logging into your Mojang account at https://www.mojang.com/login.
If you can successfully log in there, use the exact details you used there to log into the FTB launcher.
In the launcher, the Username and password must be the username and password for your Mojang account, and the Profile name can be anything you want.
Should you still be having problems after trying this, post a complete client console log in debug mode to pastebin.com and link it here.