Great post, I would offer to be diligent with other expenses. We have reduced our newspaper subscription with a simple phone call, it does not hurt to ask. I also got a late fee for a credit card bill I never got in the mail, when they looked at my record and saw I never missed a payment, the fee was dropped.
We noticed a "tank rental" fee for our natural gas tank, that was suppose to be free. Sure enough, simple mistake the company said. Right!
Good lesson learned, question and check everything.