The ToS of Betja doesn’t contain KYC or AML policy which is safe to assume that they are not requiring KYC when you register Betja account as well as during your withdrawal and deposit with any amount. I search a few post on this thread and I saw the confirmation of the Betja representative here about KYC. You can read on the link to his post. https://bitcointalksearch.org/topic/m.57524164
Thank you for sharing the link, I haven't find it either on their site that's why I asked here directly. It is good that they don't ask KYC even though they offer sports betting and as a cryptocurrency user that place bet mostly in sports betting I think this is a good news for me.