It is not wise to respond to people with non-facts when they point out your mistake. If it says that Australians shouldn't gamble and you are an Australian who does, that's not going to be a valid bet, and then when people point this out, saying they are employed by stake will not gain you anything in return, you are not getting that money back by just saying everyone who disagrees with you works for stake.
In any case, this should have been resolved a while ago, everyone said the same thing, the rules are clear, we are still having the same conversation just because the person who complains rejects to understand the point of view and keeps complaining, I do not know what more can be said to him to make him stop, so I guess we just need to ignore and let him go away.