So, you and him were coinflipping. You asked him if he wants 1 or 2 in a coinflip, he said 1 and you rolled. It was 1 and you said, "what, nooo, no, I said I wanted to go 1" even though YOU rolled after he said 1. You started lying to get out of the sit and started denying the fact that you scams. Same thing happened the other way. You nerve gassed my ALT when I was mining and then you lied and said you did not do that at all but still got punished for it. Maybe stop rulebreaking and do something good on the server.
You don't deserve to get another chance. even if you refund him.