The question would be to ask anyone who has won something from CNC if they got there COA with a 1/1? CNC would take a major hit if this was indeed a habit and had anything to do with getting extra profit from something already won.Very bad business and I would be very surprised if this was the case.
CNC says they sent it and the guy you bought the card from says he never got it......Someone is not telling the truth? Could there be a link with the new seller of the COA and the seller you bought it from? When was the COA listed? When Was your 1/1 listed?
All questions that could shed light. Why would someone sell a COA only????
I never draw to conclusions without the facts, good luck