~ This is clearly the difference between a professional platform (who understand poker and how difficult is to win two tourneys back to back) and a complete hoax scam artist.
Then maybe play on professional platforms and avoid such places. What was the reason that you decided to play there in the first place? Let me guess, seemingly better bonuses, conditions, and all that, than on other sites, right? That should be a red flag, no? That and zero to no reviews on legitimate sites. I've checked it and found that there's no trustworthy positive review on nitrobetting. I wouldn't expect much from such a site.