How to cancel an order while payment is still processing

[ninmonk]

I changed my mind about selling my car so tried cancelling the order, but can't because "Payment is still processing" which it has been doing since Aug 19.  The buyer refuses to cancel and tells me only I can cancel and that he can't, so we are getting nowhere. What are our options?

[soh.maryl]

You need to read further about motor vehicle sales on eBay.

Unlike sales of most other goods, sales of motor vehicles on eBay are nonbinding.  

If the buyer has made a payment of any kind, you need to refund it.    

[ninmonk]

What do you mean "non-binding"? Does that mean either party can back out? If the seller backs out and the other does not cancel the order, the seller is stuck because his car will be in "payment processing" mode and he can't even remove his listing, or anything else either. I have tried to cancel but eBay says I can't cancel while the payment is "processing", which it has been doing since the 19th of Aug when I backed out. 😯