Your "then" husband? Did you get divorced? How are you filing 2021? It goes by your status on Dec 31.
Which Stimulus payment didn't you get? Just the 3rd one for 1400 each person? Did you get the first 2 rounds?
Did you efile 2020? When? Was it Accepted? Maybe you didn't finish filing it or it Rejected. When you log into your account you should also see the status and if it was Accepted or Rejected, Started, Printed, Ready to Mail, etc. what does it say?
Then when you efile you get back 2 emails. The first email only confirms the transmission. The second email says if the IRS (or state) Accepte.d or Rejected your efile. Check back though your emails if you have them.
