Definitely not enough cash. Overwhelmed by rewards seems to be a common failure on KS. The list he rattles off in this case is quite extensive, and the postage

Definitely not enough cash. Overwhelmed by rewards seems to be a common failure on KS. The list he rattles off in this case is quite extensive, and the postage cost is all that's preventing it from being sent. I wouldn't be surprised if they have 10k into rewards alone, especially when you account the time spent developing them.