<prompt> Human: Recently, I received an overdraft fee. I called my bank asking what it was even though I knew what I did wrong, apologized, and said it was my mistake. They reversed the fee as a favor and I ended up saving 40!  <response>: I walked in to discuss sudden overdraft fees, my banker and I found that after a transaction the account had momentarily dipped below minimum. I made a large deposit and was wondering why my card was declined.They said because the window on the account was so small under 5 theyd waive the fees up until the deposit. I got about 80 back and only paid 15 to clean it up. 