I don't mind the sale being cancelled. In fact I am relieved . For a small profit on the sale I rather keep the Prelude.

What I don't think was fair, I lost potential buyers on both Ebay and Facebook Marketplace, by dropping the ads.

I think Ebay should take responsibility and force the buyer to pay..

Let me explain as a business account member on Ebay , I am liable to make people whole.. Ebay takes funds from my accounts in escrow.
This assures payment after a decision is made..

Ebay makes plenty of money, they should protect sellers as well as buyers (even business sellers).