Cable companies--like cell phone companies--aren't always keen to explain all the little nickels and dimes that they sweetly extract from your account.
There are so many little charges on your bill that their names mesmerize. You know, like the "Oops, We Made A Mistake, But We'll Charge You To Fix It" charge.
You might not have heard of this one, because it might masquerade under the name "payment reversal." At least this is the claim made by one pseudonymous Comcast customer, who noticed a $25 line item that seemed out of line.