I wouldn't black list them just yet. This person did come on here and try to make things right. I feel that is not black list worthy till they REALLY eff up. At least this person explained themself and gave a refund.
Cosplay DA Regular DA
Kumoricon 2014 (so far):
-Sora (Kingdom Hearts 2)
-Serena (Pokemon Y [It's the one I have lol])
-Akaito (Vocaloid. Black & Red Ver.)