There is a delay in the prizes. [News] Jurassic World Alive | Delay in PvP Season 6 Rewards
Now I know this is because Ludia is assumingly doing a great job weeding out cheaters.
The thing is, there are going to be people who feel, the cheaters stopped them from advancing in some way or another at least one rank. Ludia could work real hard and adjust the prizes individually, but the people who feel they may have been preventing from advancing would steel feel bothered because they don’t know if they lost to cheaters or not.
So the easiest solution is to move everybody up one rank and give them the next available prize.
Example, missed out top 500 but over 5000, you would get the top 500 prize.
For people who are below the 2500 threshold, you could also lower the threshold down 10% to about 2250.
This spreads goodwill and rewards non cheaters and saves customer service a lot of time, in dealing with getting things perfect.