3 weeks ago I sent Zelle for a revo 12.4 5/16 x 10 joint which was to include shipping. He still hasn’t shipped not shipped the shaft. When I Zelle’s him the money, he said he would ship it the next day. Now he wants me to send $50 more to ship it. I told him to just Zelle the money I sent him 3 weeks ago, and call it a day. Now he stopped communicating with me. I feel like he just stole my money. What recourse do I have?