I am a U.S. citizen living in Canada who files an income tax return with the IRS because I have retirement income from the USA. I realized after I had mailed my return this month that I had forgotten ...

I have not received two reporting forms I need to send in my taxes. Vanguard (my 401K plan) is supposed to send me a 1099 showing the gross amount I withdrew. They said they sent it. I do not have it.