Medievalman22

I'm looking forward to this game very much, and instead of picturing myself flying around killing things in a fighter ship, I imagine myself working solo or freelance for other trading groups. I'm concerned with how payment will be reinforced in this game, whether it be used with currency or other trade goods. Let's say I've dropped off some rare minerals and the other party refuses to pay, how would I prevent this? Would I need the support of an organisation that provides security? Is there a contract system in place, and how flexible is it? Should I make the buyer pay a bit first, then collect the rest upon arrival? Can I sue them in-game or place a bounty? I've looked at some other posts related to this, but nothing looks guaranteed so far. I'd like to hear your thoughts, thanks.