Please clarify more. Does the IRS letter say you didn't file a 2017 return?
What is showing for "return status" for the 2017 return?
Your note above says your 2018 return is "in progress", which means you haven't yet filed 2018.
But what about 2017's return status? Go to the section "Your Tax Returns & Documents." Expand that section and choose tax year 2017. What does it show for "return status?"
