“Hey, we’re raising our overdraft fees, but we’re afraid we will lose too much business. Any chance you feel like raising your overdraft fees by the same amount on the same day?”
If you remember when computer RAM was incredibly expensive - that turned out to be coordinated price fixing by the biggest companies that make computer RAM.
If you bought a gaming PC between about 2000 and 2010, you’re about an inflation adjusted $400.00 poorer (per computer) due to their illegal price fixing.