Why is this guy such a khm khm

Okay, so gw that I created ended, and I sent hb link to the winner. 24h passed, he does not mark game as recieved, but hb link is redeemed. He was also visiting steamgifts.com 4 hours ago. He did not even respod to my mail!!! I sent him another, but he ignored that one as well. Desura key for ninjas JKRIA-S2KV4-VSYBO-EPU90-YAFCY. Do I really need to wait whole week before reporting him or what?