Glitch

I was level 37 put money into game and got that new inferno weapon. And when I tried to log back in I started at level 1 and I can't access my old account. I still have the achievements for the game done but all my stuff lost. Help me out What to do

Don't expect to receive any feedback from them. I do have a problem with no video ads content available for 5 days so far. No feedback for them yet.