Horrible service regarding claims

I submit claims and then after 2 days I call discovery and they tell me the claim is denied, no one even let me know, I have to call every time to follow up. I feel discovery should mail you telling you the claim is denied due to what reason so that i can correct it and today I followed up and the lady said they aren't allowed to open password protected statements or invoices? Don't you guys think it will be nice to just let me know???? So now I removed the password and now the lady said I have to wait another 3 days????????????