After you file

I completed my taxes on 1/29/20 and was approved for the advance and was give the 1/31/20 date for it. However, I have not received an acceptance email from the IRS. Now I am seeing all these horrible reviews and getting nervous. Why has the IRS not excepted my returns was something done wrong in transmit or does it show up all through the day? I already have temp card information. What's the hold-up? It is very early in the morning so I am going to check throughout the day I guess.