I am on level 10702. I have used all my boosters. There is no way to get the last 4 chocolates as even when you have cleared all the other requirements there is no way to make more chocolate. No sense even trying after trying the last 2 days.
I had all ready played level 5000 and am on level 5061 but I still wanted to play level 5000 again as it is a great achievement for all of us who have enjoyed playing for so long.