Account vanished?

Just got logged out mid session about an hour ago. Now when i try to log in again it claims I have the wrong username/password. I was able to change my password and it still had my email on file, but it still wont let me log in and I dont show up on hiscores. Ive been browsing forums and emailed jagex, has anybody else experienced anything similar to this or have a solution?

Also when I reset my password it said "hello, username unavailable"