There have been 3 so far.
#1 was 1,200 (2,400 married) plus 500 for each dependent under 17.
#2 was 600 per person
#3 is 1,400 per person no age limit.
If you didn't get any of the first 2 or qualify for more you claim it on your 2020 tax return line 30 Recovery rebate credit.
The 3rd one comes separately and may still be going out. You do not claim it on your 2020 tax return.
Was the email about this?
Turbo Tax sent out an email about doubling an amount carried over from your 2019 state tax return involving either the refund amount or balance due.