I guess @trilyuner didn't understand what you are trying to do. 400 sats is the usual slow transaction fee in FreeBitco. I don't think it's possible to lower the fee on an exchange and most of them have a 0.001 BTC withdrawal fee currently. It's a rip off, especially for small amounts of bitcoin, but that's the current situation. We need decentralized exchanges as soon as possible. I hope they will end this madness. The popular exchanges have grown greedier than banks...