Mark my words here: This happens ALL the time. From your cell phone bill to you Internet bill to your doctor's bill, there are sometimes strange charges that shouldn't be there. Most of the time they're mistakes, but I'm also not naïve enough to think that the provider isn't sometimes trying to get one over on you, thinking you won't read the bill closely enough or that the fee they're overcharging is so low you won't waste your time fighting it. Read your bills closely and make sure every charge is accounted for.

Gerald Herbert/AP/File
A waitress processes a dinner tab with a Rail table side credit card processing device at the Tableau restaurant, in New Orleans, June 15, 2015.