Personally I wouldn't mind if BlackJack.fun admins decided to slowly give them to me at 100 spins per day, for the next 400 days. That's more than one year! How many entries would you get into Narnia through playing with Diggy 100 times a day? I believe that would be many entries. Perhaps more than two if averaged per day.
There is no official information but some users in the chat room said that a total of 40k free spins will be distributed every hour
On normal day each user only gets 5 free spins if they send 5+ messages in the chat room but currently users will get 10 free spins if they send 10+ messages
That means there are extra 10 free spins every hour or 240 free spins every day X total users who claimed this promotion runs for 3 days
At least 60 users are required to claim 10 free spins per hour for 24 hours in 3 consecutive days, 10FS x 24H x 3D x 60 users = 43200 Free Spins
I was playing Craps, and also in the chatbox during Halloween because I was sick/stayed home. I didn't get more than the usual amount of free spins. Or maybe I didn't notice because I thought all the free spins came from the Hourly Wagering competition.