The wheel

Yesterday I bought 20k zp.
I bought 24 zp crates and 40 GP crates.
I logged in and played for over 4 hours.
That was the first time I deposited zp.
I just logged in today and got 20 GP crates.
I've had 15 spins so far total, 12 when I got the zp, 2 and 1 and random intervals in-between today and yesterday.
So I should have gotten 12+8+4+5+1+2+1+4
So 37.
Just got one more spin... I'm assuming this one is for playing an hour today or something.