considering that this is coming as a response to the fact that they charged people without notice, it's not enough to just refund the money (as that option should have been available in the first place when they changed their terms). making up for something like this requires that you go above and beyond just "catching up" to where you should have been before. imo, since this is coming after the fact, they should refund the money and honor the terms of the arrangement their customers thought they were getting into.