If you were rejected you can log back into the return and make charges.
TurboTax does not provide the 1095-A. It is issued by the marketplace to show you had insurance and to evaluate the discount you may have received.
Did you have a marketplace health insurance plan?
"If you have not received your Form 1095-A or you received an incorrect 1095-A, you should contact the Marketplace from which you received coverage."
"If you receive a corrected or voided Form 1095-A, you may need to amend your return. For more information on what you need to do with a corrected or voided Form 1095-A, see Corrected, Incorrect or Voided Forms 1095-A. This information can help you assess whether you should file an amended tax return."
If you need to add a 1095-A and you're using TurboTax Online, click on Deductions & Credits below Federal, in the left-side menu. Scroll down to 'Affordable Care Act, 1095-A'.
If you're using TurboTax Desktop, under Deductions & Credits, scroll down to Medical > Affordable Care Act.