assessment order - Goods and Services Tax - GST

I got an show cause notice on 28.12.2023 u/s 73(1) , had many personal hearing on that and on 30.042024 we get an original order and, on that we filed an appeal on 27.08.2024, the very next day we get an additional order. on original order assessment officer had mistakenly left off to add Flood cess On original order. and now on additional order is under sec 74 without any SCN, or hearing. advise.