To be fair, when they reset usage for everyone (instead of a banked reset), they move your reset back a week later, so:
1. Your window ends (usage reset) in 3 days
2. They reset usage for everyone
3. Your usage goes back to 100% and your current window ends in 7 days now.
yea... it doesnt matter how much you have used.. they just shift it by entire week with 100% refill. Crazy!