8915E-T vs 8915-F

I E-File I keep being told that 8915-E for second part of Covid Disaster supposed to be used for 2020. I was asked the questions but form is not showing that it was sent to the IRS. You can see it in tools but the form didn't attach for sending ! Friends are now telling now that 8915- F was supposed to be used instead this has been so confusing I'm paying for service that  didn't include either form! I can't get a clear understanding from Turbo why it wasn't sent