This is all becoming too common in our profit-driven economy - if a "normal" margin is not forthcoming due to competitive pressures, make up the difference elsewhere. Too often this practice involves hidden or poorly stated "fees". So, if effect, buyers themselves become in a way a product of sorts. Ugly, but truly can be implicated.
BTW, the shenanigans of UPS are not limited to international shipping. At work we use their online service for generating package pickups. No longer do we receive printed price books, with effective dates sometime in the reasonable future. It seems any time Big Brown wants to implement a price increase the computer is automatically updated. I've also seen instances where our company "discount" was accidentally deleted with an update - suddenly packages were going out at exorbitant rates!
Sad, sad, sad.