Fast Requests Expired Suddenly and No recharge

I have been using Cursor for a year. However this billing cycle, my requests were supposed to get reset on my recharge date (29th August), and it didn’t, and it seemed to chew through fast requests extremely fast. Here are the screenshots:
I had 463 requests done on 5th Sept (apprx 9:45pm) apparently?
image
And right after 2hrs of that, all my remaining requests (37) expired - where I know I hadn’t done THAT many requests…?

Why didn’t the 500 fast requests recharge at the start of the billing cycle (29th Aug)?