About a month ago, someone who I was friends with for 3 years and have done business with called me while he was down in Miami, telling me that he and some others were trying to rent a boat. However, he and the others did not have a credit card with a high enough credit limit to pay the boat and he called me asking if I would be willing to let him use my credit card.
He told me that he was not paying for the boat, and informed me that his friend would be paying him the amount in cash the next day and that he would then be depositing that money and sending me a wire for it.
The next day, he started coming up with excuses, and fast forward two months later I'm yet to receive a dollar for the boat, however he continues to tell me that he's going to pay me and even claims he has sent a wire that I've never seen arrive. These communications were made both over the phone and by text. I have two people who were there while he was on the phone with me and could vouch about exactly what happened, and two people witness him receiving the cash but never paying me.
The situation is a bit complicated, however, as he lied to me about being 18 continuously and after the fact I ended up finding out that he was 17. I also have other people who can vouch for the fact that he told everyone he was 18, and I even have a plane ticket which he booked on my computer months ago in which he put his age as 18.
What actions does the law permit a creditor to take in such circumstances?
Edit
In a comment (made after the answers) the poster says that an additional one thousand dollars was to be paid along with repayment of the borrowed sum.