A few years ago, Social Security established an attorney call center, 877-626-6363, that attorneys could call about problems getting their clients who are under 55 paid. An agency website still lists the number but it's not working. Either you get a fast busy signal or it just rings and rings. It's not like it's hard to get through. It's essentially impossible. Try calling it yourself.
My advice to Social Security is to just take the number off your website and admit that you don't have the personnel to answer your phones. They won't take that advice, though, because it's not politically correct to admit this in a Republican Administration. Exhortations to staff to work harder and smarter are the Republican answer to all staff shortages while taking every action possible to antagonize the staff needed to actually do the work.