about the minimum bet , I dont see anything about that. This means if someone is leading already he can bet 0.1 % or 0.05 % of his bankroll to meet the minimum 70 bets to qualify the game?
There is no minimum bet stake so yes, you can do that. Of course that in doing so you are not getting the chance to increase your ROI% and will probably be caught up, but it's up to you.
I see but still its kinda weird rules or even that to increase the ROI by getting 13 % of the stakes , someone can bet 5 % of the bankroll by betting at the odds of lets say 1.01? is it permitted?