Why did it reject? Probably for the AGI? The IRS took a long time to process 2019 returns so you should have tried entering 0 for the AGI.
The online fees are to prepare the return whether you efile or print and mail. Turbo Tax is a self prepared return. They only guarantee the calculations based on the entries you make. They won't know if you left something out or entered so in the wrong place or answered a question wrong.