Big welcome bonus offer oddsring 200% up to 200
See here: https://best-bonus-bookmakers.webnode.com/oddsring-high-bonus/
All online bookmakers offered welcome bonuses, this bonuses is not free, must by rolloved.
Somewhere rolloved is easy, or somewhere hard.
If they would not be applying rollover then people can just get the bonus and go home with it. Defeating the purpose of why they offered it. They are offering bonuses because they want people to play in their gambling site, if that would not be the case then they have miserably failed in their promotion.
Usually I don't even turn those bonuses on, it takes like x40 or even higher rollovers before you can even get the bonus money.