Yesterday I received a suspicious call from someone who said he was working for social security. What should I do in such a situation?
You should hang up and then report details of the call to the Office of the Inspector General. You can do this by submitting a report online.
Another question on  toll - free. Is it possible to call the TTY number on a weekend?
No the TTY number is only available between 7 a.m. and 7 p.m. Monday through Friday.