Ebay selling my missing amplifier

Who have you contacted at eBay? You should contact the fraud prevention office there. Also, is your article listed in the North American eBay or in one of their other national auction sites. The appropriate fraud prevention office might be through that subsidiary's sitemap.

Do you have documentation? (Warranty registration, purchase receipt, photos of the gear before you sent it off, mail/parcel service receipts and insurance papers, loss claims, correspondence with the repair facility, documentation of their receipt of the amplifier, invoices/estimates for repair acknowledging their possession of the device, documentation of payment for service, if any,) If eBay does not respond, call them on the phone. File a loss claim with the shipper if the item was sent and not delivered. Contact the U.S. Postal Inspection Service if the USPS handled the shipment. If you can afford DarTZeel gear, you probably have an attorney who can help you. I am assuming you have recorded the eBay listing and gathered the contact information of the seller. You may need to contact law enforcement in that city to notify the police of someone selling stolen goods. Did you report the item as stolen? (By now you should have.)

Part of this makes me wonder if you are trolling. Someone who would source and buy equipment like this ought to be organized enough to not need advice of this kind.

@snook2 is, IMHO, without a doubt trolling, or is willfully hiding key facts that, if known, would have ended this thread long ago. He has willfully chosen to not answer a slew of important well-intentioned questions by myself and others in this post. The only question that remains is why @snook2 finds stringing decent folks along with his booshwa so irresistible, and I suspect most here already know the answer to that question, and that word begins with the letter "A". Enough said.

I suspect most here already know the answer to that question, and that word begins with the letter "A". Enough said

Alzheimer's?

Apparently there are no new updates.

What an odd thread...

Based on the limited data, the guy likely sent his amp back under or not insured. Shipment gets lost. Sender gets upset and either accepts the insured amount or digs in. Shipper could give two hoots because you either declare its proper value or you dont. Lost/damaged/unclaimed goods after a period a period of time are sold to a third party by the pallet, especially if the declared value was low. Sender has gone radio silent because he likely made a few errors in judgement by declaring such a low amount at the outset.