BRING BACK MY MONEY FNB!!

I am very disgusted with First National Bank services. It is very poor. I had made a deposit early May 2020, I made a mistake by not putting one digit to the account number and still they processed by transection, I went to the bank to claim my money and they have been making me sign countless useless forms and I am fed up. The last time I made a complaint they made it look like they are going to help me but along the way they change and not respond or give me feedback. they gave me a form from Ombudsman that I must fill in to get the money but now they are coming with other story that the "FIRST NATIONAL BANK" cannot process my case because their Online banking does not want to pay, now I am confused as to what I must do because the money is with them. I want my money back FNB!