My AppleID was disabled, I want it back.

Hi, Apple Support, I need your very kind help!

My AppleID was disabled 3 weeks ago without any information informed, I don't know why, I did nothing. Now I could only log in iTunes with my AppleID, no app could be downloaded or updated, let alone add new apps. My AppleID was registered 3 or 4 years ago, it is my only one. Without my AppleID, all my Apple devices are completely useless. And those apps in my AppleID help me a lot, I need them badly!

I eagerly want my Apple ID back, could you help me to enable it? Please!

Thank you very, very much!!