The interest rate could have gone up since you aren't borrowing as much money. However, since interest rates have gone down in the last 3 months, I would think that offset the hike that you took by reducing the principal amount. Personally, I've absolutely had it with big banks. I don't want to get nickel and dimed by Huntington or whoever just to have their name splashed all over the new baseball stadium in Columbus, but when i get fees added that weren't there before like a savings ATM withdrawal or excessive transactions on a checking account, I'm the asshole. There are plenty of other banks out there that have competed quite well for my business, and I will be happy to patronize them instead.