I just tried it. On mobile it has "Come Later", no rewards to be had. On PC, it had a reward, watch ad, 2 tokens, jjim-dandy. Click again, and get the message that there no more rewards, come back later. Go off and look at the chat in clan, come back, the free token button has gone altogether. It'll be back, but it's going to be 10-15 mins before it does - this happens normally. So I don't see how you get 30 ads on the spin.