One my friends, an old lady joined to this system few months ago and put $3500 + $100 (like for membership). Few days ago she said me about this and when we logged into the only money that we found was in here Bitcoin Wallet - ~approx. $140 (0.018BTC).
From what Google tells me, it's a ponzi/HYIP. That means your old lady friend got scammed.
I don't have any answer from bitclubnetwork.com, but i hope to get any assistance here .
Maybe she can file a police report, although that won't do much, it might add to the total if it ever comes to prosecution.
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Some links:
Criminals behind Bitclub-Network Investment Scam[Investment Warning] Bitclub Network Review and Analysis