Op its best you elaborate your post and make it clear for you to get any tangible answers to your question
Because it confusing to say the least
Agree, I dont understand what does COD mean, maybe this termin isnt connected with gambling at all
He never replied to this thread but there are too many meaning for that abbreviation (COD). If you'll read the posts above it's clear that he's saying something about a game 'Call of Duty' which is also I'm guessing.
'Competition' means that he wants to join some kind of tournament as being mentioned.