Such a shame, let’s hope whoever did/does hand over £3.4K manages to somehow get there money back when it does not arrive. Fingers crossed they can get there money back through the eBay 30-day buyer protection scheme. Not sure if eBay will peruse you if they can’t then get the money back from the seller which in this case, the money would be long gone.
You have to be so careful and check everything. Starting with the pictures, the amp looks like it’s in a Hi-Fi shop, and the item is located in Wickford, presumably that’s Wickford in Essex. I live right near Wickford and I know there’s no Hi-Fi shops Wickford. Even if I didn’t live near the location, I’d be asking questions about what Hi-Fi shop that is etc and making calls and checking online etc. I see there was is no option to collect, that’s a huge red flag too. Then there is the price, if it’s too good to be true, it usually is.
Anyways, I hope this ends well for the buyer, that’s the main thing.