The odds are against everyone. It was a 1 in 18 chance, which isn't too good. But y'know, like everything, the more you do it, the more chances you have. Splitting up the reward next week to give 3 people instead of 1 will help.

Just keep up the great work and rewards will come, whether they be a lucky spin here or a big upvote from one of the big accounts who are starting to look in to this community.