This buyer is a Fraud. made mistake and buy wrong item. It is very clear his mistake. We won't admit.
Looking for various reasons to argue, but unable to provide any favorable evidence to support his theory.

In our communication process, we asked him to provide an important info. And this important information can reveal the truth. We told him that if the evidence proves that he is right, we will give him a refund.
But he has always avoided providing this evidence. This evidence only needs to take a photo, it is not difficult to obtain evidence. Moreover, if you have a piece of evidence to prove you are right, you should be eager to show it and tell the seller: Look! I was right. Isn't it?

Why does he want to avoid providing evidence? This is suspicious, right?
So we have enough reason to suspect that he knows he is wrong, and this decisive evidence will prove that he is wrong and cannot help him, so he chose to avoid responding.

We found that he was also reported by other sellers. Therefore, this buyer is obviously a fraudster. He thought he could blame the seller for all his mistakes without providing any evidence. But he was wrong. All sellers should unite to resist such buyers.