Chicken licken and their wings

I bought wings yesterday and among the wings that I bought there were 3 which looks like they've been sitting with them for over 3 weeks,they were black even in colour,I saw this at home and it is quiet a drive fro<br> m from home to boulders Midrand so I couldn't go back and also o then thought I'll go and complain and what if they do something to those wings just because I went and complain,i even took a picture of those wings cause I couldn't believe how people can sell such to a human being,please assis