For what it's worth, I can confirm I got a free bitcent (0.01 BTC) from itcoinbay, he first sent 0.02 BTC to me, and then I've sent 0.01 BTC back. Other than that I've no association with him or his site.
You do realize that what OP is asking, involves high risk to lose money? We see this kind of approaches almost every day in this forum.
1. Get x amount free
2. Deposit y amount first before to withdraw x amount
3. Once someone deposit the y amount then you never hear from them again
This is completely a very wrong approach OP. I will highly advice to change it. If you really want to go this way then do this:
1. Find an escrow
2. Deposit the BTC to the escrow
3. Run this contest/offer. Users will feel more comfortable.
I am giving you 24 hours time either to change the terms of buying membership and then you will pay or do an escrow. If you fail then I will tag your account.
Edited
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