Security Pacific started yanking random $20’s out of my account when they were in trouble in the 80’s. They wouldn’t give them back so I moved.
At&t tries to rip us off every couple of years with unrequested plan changes. It is a real hassle to get it fixed and get a refund. I got it fixed and demanded a refund which they refused, so I told them I would short my future payments to compensate if they kept wasting my time. It got fixed.