First, your product has demand—that's why people buy it. 😊
As for the refund, I think it might be due to:
1.) He wants a free lunch.
2.) He didn’t get what he expected.
As for the solution, I don’t know, but I’ll give you a big hug.
Thank you for sharing your story, Christina. It’s made me think about what I’ll have to face when I start selling my own product.
I’ll make sure to have a clear refund policy. For now, I think you can just give him a refund and write about it.
You might even make more than the money you refunded!