Email and contacts are all gone!

I see others are experiencing similar issues. I use my Hotmail email every day. I upgraded to Outlook a few months ago. I logged on today and found all my emails and folders gone, including all of my contacts. Also I have been unable to receive email. I have a substantial amount of important information and documents that are missing now. I have read several similar threads and followed every instruction to attempt a recovery, but nothing worked. The only messages in my inbox today were Welcome to your New Outlook, and Getting Started with Hotmail.I did not manually delete my messages, I do not use any third party software to access my account, my account has not been inactive, I did not rename it, Conversation Threading is, and was already off, and I do not use Sweep. I use Firefox 22 as my browser, and I have never used a mobile device to access my accounts. When I tried to recover or restore deleted emails, it said there were none. Please help me out here. For many years I have supported Hotmail with a paid "Hotmail Plus" account, and I expect my data to be there when I need it. Thank you.