Actually, though, 11x rollover is extremely small for a 100% deposit bonus, IF there aren't minimum odds, as suggested above. I've personally not seen anything less a 1.6 odds requirement (straight!), so even parlay odds aren't eligible if they contain even a single straight bet lower than 1.6. In fact, 1.8 seems to be the norm now.
I cant find the full terms about the bonus as well even though I have an account, not really sure where they put the terms but I cant find it. Maybe I missed it but I think it should be placed under the deposit menu.
I'd find out except I'm not keen on opening accounts just to ask support. Maybe someone like you could take a minute to query support? Then again, I'd also stay away from any promo that doesn't have terms and conditions easily accessible! Just too many hard-to-find loopholes to navigate, not worth your time.
Also, stay away from BetOpen. You can see the entire history of their dubious sportsbook here: https://bitcointalk.org/index.php?topic=1812350.420
I joined when they launched, to support a new player. They had an incredibly badly run ICO (which they kept extending). Only gave me 5% of tokens promised from a competition that failed. Every issue of delayed payouts and cancelled bets are eventually answered with "we had problems with our providers". Absolutely zero updates on ICO, amounts raised, etc. They also ignore questions and issues, returning every few weeks to milk more from newcomers.