Ignore. Total scam. Callers are in India; they are spoofing a 202 area code to make you think they are with some governmental agency in Washington DC. They want your SS number. DO NOT GIVE IT TO THEM. DO NOT GIVE THEM ANY INFORMATION. Block their calls. Total scam.
Called twice with the same automated message threatening potential legal action. Told me to contact the IRS. After the second call I blocked the number. Could this be targeted to seniors?