My account was also disabled since 4 days ago. No decent response, I have enhanced verified my account which has been approved and nothing. I am seriously worried about losing my btc/altcoins
Your account was approved and what do you mean by nothing? You should be well now if you think that nothing has happened.
You'll not lose your bitcoins nor alt coins to bittrex unless you broke their rules but with the disabling of accounts they are giving those people to do something for enabling their accounts.
Compliance is the answer for those traders that got disabled.