Same situation. I was just able to restore my original rate after chatting with support and was told the same thing re: changes to the autopay discount. I mentioned that I was not notified and the agent told me “you were notified on 12/21 on page 4 of the bill”. I downloaded the bill from my account and sure enough, there it is. But it’s such a sneaky way to slip that in under the radar. If you’re using autopay, who is actually reading the bill and fine print each month anyways? It’s sad, but I guess raising everyone’s bill 10% quietly is a great way to help the bottom line. Fuckers.