The first mailing was April 28th. I hope your SSN ends with lower numbers than mine!
This is the link to the IRS website that has the answer: www.irs.gov
Irs.org should give you an answer.
You can claim back tax after the financial year which is now. You can apply online or speak to your local CAB
Go to www.irs.com and find out it depends on the last two digets of your ss#
I'm trying to find out status on amended tax refund