Unsure what to do?

Someone on here promised to pay me money if I made them a customized video. I agreed and filmed it. Before I was to send the video to him, I messaged him to get paid so I can send it to him but he won't reply now. So I'm unsure if I should upload the video? It's a bit embarassing and involves my feet..I would upload it but I don't want him to get his video for free. I guess I could block him and then upload it so he can't see it? I feel like I did do a lot of work for it tho :S If anyone does want to purchase it I won't upload it and sell it to you. It's about 6 mins long and you can name your own price, but if no one wants maybe eventually it will be uploaded.