Maybe it doesn't compile the stats until later times. Either way at the end of the month it should be close. If you knew exactly when their timer starts you could compare (not what the bill says but the real timer).
I think caps will be enforced and lowered (how much idk?) once the speed issue is addressed. Maybe even total usage based if they can get something standard. Nothing will calculate it the same but i don't think it should be off GBs. Idk maybe it would if its a week off.
AT&T cell phones will tell you that by calling *DATA#
