If you are monitoring a channel that was suspended, and no longer is. Then thats the issue. There is a some general weirdness 
when a channel goes from suspended to not suspended.
For follows/subs on helix, it’s easier to just get all pages until you can get no more pages instead of using the total as a point to stop at (and yes subs has no total anyway), thats if you need every user rather than just the total