There are countless reviews here, I wont add the clutter. You need to understand first how this works. Sometimes you get frustrated but the reason is your logic is weak. There can be a winner with higher bid value if he is unique. The fact is this is so much dependent on luck & guesstimates that is may seem fake.
Mind you gambling is very addictive, you will start with 200, then loose 2000 and then you will want to recover it. Just lost 1500 in trying to cover all possible bids below a particular amount but still did not nail the lowest unique. Very improbable but guess meanwhile someone else also bid the same as me and therefore a higher value became lowest unique.
We can never say with certainty unless they give winner details like FB ID and phone number.
What to say, good luck with gambling. Best way to get things is work hard, earn more and buy from market.
It always works ;)