Is Skyfxoption licensed and legitimate?

Basically ive been having problems with withdrawing my money for about a month now. They keep asking for more money. Theres been a problem every step of the way that requires more cash. They take payments in bitcoin from blockchain to their node address. I have paid at least $1700 on what was supposed to be just a $500 trade and %20 commission payment of whatever the new balance was.