coinexchange is becoming another yobit. They won't allow one to withdraw postoken, they are staking with users balance. Their twitter account is disabled. compare this links   https://etherscan.io/token/0xee609fe292128cad03b786dbb9bc2634ccdbe7fc?a=0x4b01721f0244e7c5b5f63c20942850e447f5a5ee (Coinexchange Postoken link that won't pay out no matter how hard you try, transactions are always into to address, no outs transactions ) I used the minting calculator and I realized coinexchange has minted close to 4k POS. I believe you understand why they don't pay out . To hell with them