This casino is one of the tightest casinos I know. They offer 0% play-through on bonuses but you never seem to win anything on their bonuses. 0 Play-through at what cost?

They say they offer rewards with no requirements but in the rules beg to differ,

Here are some of the rules for rewards:

Any reward you have will be subject to this policy.

1. We believe in Fair Play, hence there are no wagering requirements on any of our rewards or offers. Since we are fair, we expect you to be too, and in order to guide you on our expectations we have prepared the following Fair Play Policy. Any internal investigation which uncovers noncompliance with this Fair Play Policy, which will be determined by Us in Our sole opinion, may result in the removal of funds from your balance, suspension of any current or future Reward or closure of your account, and refusal of any of your future accounts. Any of the below patterns and behaviors are considered Anti Fair Play
   1. Accruing OJO Plus or Unlocking Levels and receiving OJO Wheel rewards by using low-risk betting patterns (low margin betting, equal betting, zero risk bets, hedge betting, doubling systems. For the avoidance of doubt, this includes using low-risk betting patterns either alone or by colluding with others, either on this online casino or with one party on this casino and another party on a different online casino.
   2. Utilizing or attempting to utilize our currency conversion option in order to gain rewards/offers in a stronger currency
   3. Depositing purely to take advantage our Rewards/Offers and with no intention of playing /risking the funds you deposited with.
   4. Colluding in any way with others in order to take advantage of Rewards or offers.