I urgent the moderators to ban XYes from the forum announcements page. They are professionals thieves, and are just trying to get new victims here.
Scam is not moderated here in the forum. So your request of banning them here is not possible. You can only give them negative trust and flag them for the damage done on you financially but you will need a solid evidence to establish a solid scam accusation.
Arbitrage betting is very hard to defend here because casino not normally flagged user with arbitrage betting issue unless they find a connection to multiple account on Xyes or other casino that use same odds provider.