Amcore Bank Around 355 dollars in NSF Fees when we had money in the bank Elgin Illinois

Ok, We made a mistake of writing a check that was returned for the first time because we messed up, but when I checked our account it showed that we were negative and that the bank I guess went ahead and paid it. Ok, so I was going to owe the bank what ever it was that I overdrew and a fee of 35$. This was the saturday before Mothers day, that I checked the account. Friday was when we deposited cash into our account though the bank teller.Well later that day I checked the account because my mother was telling me that she had already recieved her tax check and to check my account,so I did. Well when I called the telleserve my account was no longer in the negative and I checked the deposit and it said we had a 1200 hundred$ deposit in our account that was made on the thursday before which I was like what is going on,made no sences because I was negative before and how was it deposited on the 9th.Well what I thought happened was that we got our check from the taxes deposited and that paid what was owed to the bank and we still had money in the bank. Well it was around 9:30pm and we took our sons to the movies Hey we had our money, used the debit card.Next day Mothers Day my Husband took me to eat, we had a good day.Monday I called to check the bank account to see what had gone though and we had what we used go in. Later I check and it said that the check that we wrote was retured, Damm, made a mistake on thinking that what was put into my bank account was the tax money. The telleserve did not say when I checked my account on that saturday that it was a returned checked. We didnt know we never had that happen before. Well the checked was not paid it was retured and for some reason the things we had money to cover all got a NSF fee of 35$ each and that fee was also taken out of our money that we had in the account and because of all the fees we are overdrawn 275$ and a total of 360$ in fees and that even goes over the amount of charges we made. I went to 2 bank branches and was told that a deposit of 1200 was never made on saturday and that they put the biggest amount in first no matter if it came in last, and that is why im being charged .It didnt come in last, it was returned back into my account on saturday and that is why we spent our money because the bank said I had money in there.Even if I made that mistake of thinking it was some other money,the check we wrote was returned back into my account,it was not paid so we still had our money in the bank minus the fee they would charge for it being returned.I dont know what happened Im so lost right now. Its not right what the banks are doing.

Why
Elgin, Illinois
U.S.A.