Just in case OP is actively reading the comments here, I would also like to suggest adding USDT TRC20 as it's cheaper to transact using such compared to USDT under the ETH network which is currently listed as a deposit method. Personally, I'm using XRP for my gambling needs, the fee is cheap and it confirms faster, but if they'll eventually add the coin we requested, then I think I would be attracted to using a stablecoin.