I totally sympathize here, going through the same thing now, I verified my ID when I received the 5071c letter last week still have not received any update, its super frustrating but that being said is not an issue with TurboTax, this is the second year in a row I have received the 5071c letter to verify my identity (I have zero children and no additional deductions). I believe the IRS has been selecting more and more people to verify to cut back on fraud (still annoying I know).
Its actually a lot easier (at least it was for me) to just call the number on the letter and verify my ID vs trying to use their online system (it also couldn't verify some of my info online). Took maybe 30mins and the IRS rep was actually very nice.
They say it can take up to 9 weeks to process once it is done, if I recall correctly last year it took about 2-3 weeks so it was not nearly as bad as they said it would be. Sadly there is no way to speed this up.
