In my opinion, if a player gets banned, their money should be refunded.
I've seen people spend over 300 dollars on the game, and that kind of money should be refunded. It's almost like stealing. Now I'm aware that we agree to the terms and conditions every patch, but come on, getting banned shouldn't be a reason to lose 300$ worth of content. Imagine if you were toxic in multiplayer on a dlc for a game. Would it be fair to take away the dlc for the person that was toxic, and not refund them their money? Now remember, this is my opinion, that doesn't me it right or wrong, it makes it my opinion.