Looking at some of the comments here - I'm surpris...

Looking at some of the comments here - I'm surprised. I've always gotten through, though sometimes I'd have to try several times due to busy signals. Then, at times, I've had some long holds, but that's to be expected. Once connected, I've found any agent I've spoken with to be courteous & helpful.

For those who complain that "it's ALWAYs BUSY" or that hold times are too long - call your conressman/woman and US Senators. If the number is so busy it's because they're under-staffed because they're under-budgeted. Legislation such as the "Tax Cuts & Jobs Act" may cut taxes for billionaires, leaving offices like this short of what they need to function properly.