ok so just had a bug issue. when I was working on completing the prize collection, I finished the weekly puzzle. It showed my prize collection completion for the lvl at 100% even though I was still missing a prize. And the buy only prize number went to -1. After refreshing the screen, everything fixed itself. And upon finally completing a prize collection I never received a crystal banana. Again after refeshing the page, it gave me the banana. Hope this helps