I had a similar experience. I called IRS as well and wanted to come in to speak to them. The IRS rep taking the call checked my situation and noted that the return was rejected via efile and indicated because my wife died in 2019 that her SSN was locked and that was probably the hang up. He said coming in to talk them would be a waste of time. I sent in my return by snail mail to the IRS and MD state tax organization and will probably wait a long time for my refunds.
