Example:... your account has a balance of $500....4 transactions hit at the same time, one for $490 and three other smaller ones totaling $490 dollars. Dirty MF's process the larger one first so they can hit you with an NSF charge on the other three....$35 per pop.
This exactly what the do. Their nightly batch jobs are programmed to create over drafts. It happened to me years ago and told the bank that I'm a computer programmer and knew what they were doing. I was owing like over $400 in overdraft fees. So what did was slowly took out my money from my savings account until it was empty and went to a credit union. Left those fuckers with a -$400+ in my checking and never went back. My credit union will transfer money to your checking if there is an overdraft situation up to 5 times a month before they charge anything.