Placed the icons found on its webapp and was asked to pay when I tried to checkout.

I haven't been able to use a single image unless I download the entire bundle and do my own search engine. And in that case I'd assume I shouldn't expect any updated content.
This thing does not work, but this deal does not allow refund.

I am getting more and more of this nonsense on AppSumo. From weird 1 purchase reviews that were left undealt with, score average removed from display, to my true reviews/questions left hidden. I don't even bother leaving reviews anymore. I can feel my last day on AppSumo coming.