"Nick please hire an actual bitcoin expert to verify what you are saying. You talk about hashes? That doesnt have anything to do with this. You say you only confirm 1 deposit of 4 btc to you guys? Have you even checked the blockchain reports? Either block explorer or blockchain.info. all blockchains confirm i have deposited 4 btc, withdrew 4 btc and deposited 4 btc again. Meaning 8 to you and 6 back to me (the first 4 i withdrew and 2 the second time around) you guys are 2 on top of me. That article u linked it says a double spend attack is when a user spends the same bitcoin twice succesfully. How have i done that???? I sent u 8 different bitcoins whixh you all have. How have i sucessfully done a double spend attack? Please ask around bitcoin experts and they will tell you this isnt a double spend guaranteed. If you can get someone reputable or post this up on bitcointalk and if the forum members can verify this was a double spend attack then sure i will stop. But this is not a double spend attack. I deposited 4, withdrew 4, deposited 4, then only able to withdrew 2. So i am down 2 bitcoins, how are you saying i am up 2 bitcoins from you guys???"