Big corporations do all sorts of crazy things to squeeze a few bucks out of customers. Take one of my utilities, for example. (This institution shall remain nameless, since they might sue me for libel or defamation [whichever one applies to a corporation vs. an individual])! Recently they changed my account number, which resulted in late fees as my automatic payment through my bank was delayed during processing due to an incorrect account number (!). Now what in the world causes a need for a new account number when no changes have been made, and the customer never had a late payment in 5 years at one address? It's crazy, I tell you!