After you file

My forms were not rejected by the IRS I just enddd up paying several thousand  more than was actually due. The weird part is that it was correct when I verified my forms but TurboTax changed the amount during filing. Then it showed this new amount in the amount due box but when I sent back to it a couple of months after paying 2021 taxes it showed the amount that should have been paid. I have filed an amended return so now I will see how long that takes. I printed the forms and mailed them because Tutbotax failed to efile an amendment as they said it would on their site. I won’t even try to explain the transitions of screens in trying to do that task! It was messed up.