I hadn't realized that I'd been being double-billed for my DSL service for a year. When I called to fix it and get a credit, the customer service person said they only credit for three months. In other words, I was out more than $300 for their error. (Sure, I should have caught it, but if they hadn't made an error, I wouldn't have had to catch it).
Anyway, today, I went to transfer phone service, and - in a move very unlike me - I told them not to transfer DSL. I was going with a new provider because I was unhappy about how they ripped me off. (The part where this is unlike me is that the "old" me...the me not doing a life list...might have switched providers, but would never have TOLD them).
Lo and behold, suddenly they COULD do something about it!
Lesson learned: Sometimes a threat works.