About Xend Unlock Fee

Hi, I have tried to buy Xend coin yesterday but i could not unlock the system at first. Because of that, i have tried to unlock many times. To result of this, system has finished all of my ETH because of unlock price. I have research this and unlock price must be paid only once but in my case it did not happen like that. System took unlock price at every time that i have tried. Is there any chance to get my money back or with whom i can talk?