As much as I hate that 50btc are idiots as much i hate fucking liars.
At least do your freaking math bro, 15-10-13 start of mining 18-10-13 end of mining on 3 th/s.
3 th/s will give you ~5 btc per day -> 3 days*5 = 15 btc.
And I didn't say i was running 3 th/s I said that i was running 3 terrahash miners
50btc.com will just claim that everyone is trying to scam / Blackmail them and / or that no one had any btc in their account so that they can get out having to pay anyone anything