After you file

I have no clue whats going on with my return i filed last year i was late filing and it had been since 2012 since id filed and it was 4/2/2020 when I filed turbo tax I had to do the 5071c letter of identity verification 8/6 finally got the 2,400 stimulas 9/14/2020 have 1child the lady said it be 9weeks on my return. I stoll have jot got it and its been 1year but 8 filed this year 2/13/2021 and recieved my refund plus the 600 stimulas on 3/2/2021 I have no clue whats going g on last ti.e I called was 2/28/2021 and they said they had send my return to another dept said they sent a letter on 9/22 but I didn't get one and I had to wait 60days either they would send me a letter or call or send the return  and I've seen nothing I don't understand getting g the 2nd before the 1st one does anyone know what could be going on the only thing differe t from the returns is the credit a d deductions differ I could really use it to move my ko ile ho.e I bought