It is bad thing to do and should change this policy.
They did have an email they sent out yesterday saying if you would like to wager up $100,000 on the euros you can do that on their sportsbook.
Thing is you would need to get approval from your vip host so to do it.
I don't know about that much someone will wager on a single match on the site, but if you wanted to wager $1000 on a market you should be able to if you want and not be limited just because you won on those bets previously.
Very sad if they can not allow their players to wager what they want.
I understand that some sports should have lower limits because it's easier for corruption to occur, but if I was allowed to bet $130 on a table tennis match last week, it doesn't make sense not to put more than $15 now.