Good luck with the system. Call the help desk and plan on reading War and Peace while you wait. You may finish the book before they pick up. Hopefully you get the actual state call center and not the contracted one, which will just run you in circles.
Also, remember the last name filing days. A friend was told to call back AFTER sitting on hold for 3 hours, since her last name started with the wrong letter.
With all of the state offices being closed, one would have expected the governor to move positions around, but he hasn't been much of a problem solver to begin with.
Not sure when you got laid off, but the extra $600 isn't fully retroactive. It only started the week of April 4th, so any time before that is just straight unemployment from the state.