AGI VERIFICIATION

E-MAILED BY 2019 TAX RETURN AND IT REJECTED BECAUSE THEY INDICATE WRONG AGI NUMBER FROM 2018 TAX RETURNS.  I USED EXACTLY THE SAME AGI NUMBER THAT WAS ON-LINE 7 OF MY 2018 AND IT WAS STILL REJECTED.  ????  WHY.  ALSO, ALL IRS "LIVE" CUSTOMER SERVICE UNITS ARE CLOSED, YOU CAN GET A VERIFICATION OF YOUR AGI.  VERY FRUSTRATING.  TURBO TAX MATCHED MY AGI NUMBERS FROM 2018, WHY, IF THERE WAS A PROBLEM THEY DID NOT CATCH IT DURING THEIR REVIEW??