Do the points u need go up with ur lvl as well or no, cause i was lvl 76 last overlords and the points for the monster was 600, now its 850 and im lvl 77

No it has nothing to do with your level, the milestones have indeed been increased for whatever reason: there was not much point grinding/rushing for this event before, there is even less incentive now since the rewards are the same while the price increased unreasonably and is way too high for what you get.

I thought this event was only 7 days before. This time it's 10. That would be cause for an increase in rate for rewards. But regardless, it's not really going to change much for me. My goal is just to get to the free monster.

@tracey-mill-toms i would like to net me a faugnar too, good luck to ya trace