Threshold is not in my contract and I don't see anything where they just can add their own rule, if someone has the same contract as me and he did see this please let me know, but I didn't find it.
I also had some conversation yesterday with someone and he says it is possible, because for some reason the US contract law allows it to change a policy or something like that if they notice you. RPM never noticed me by mail, when I visit dashboard just a few days ago there was a popup with it. In my opinion they could atleast have send an email, or do this all before my last 90 days kicked in.