I work at a call center for a major cell phone company. A client called, complaining about being lied to about a data plan. After forty minutes of trying to figure out what they wanted me to do, I put him on hold. I got my manager, comped his first month, and managed to get him the plan he thought he was promised. 

After that, I asked if there was anything I could do. He told me to cancel his service - he went out yesterday and got service with another provider. He just wanted us to realize and correct our mistake.