Your proof of transactions show that Roobet.com brings convenience to users and I suggest to add the point for Segwit address to their FAQs. People, especially visitors or new users will fastly find out the support for Segwit address on Roobet.com. FAQs is the most visited and first place new visitors, new users will take a look at.
I tough F.A.Q, T&C and other things information one of the pages which is rarely visited by the user
Well, I believe most of user always using a legacy address since most of the deposit could be using a web wallet, smartphone wallets, and exchange wallets. About the withdrawal I think is not really getting effect what's ever address you are using, they already fixed the fee from the casino by using the adjustable of network fee so the fee could be depending on the network. Cause checking the withdrawal using a few addresses from legacy and segwit the fee not changing at all.