I saw a medical book for sale on amazon marketplace for a tenth of what you’d get it anywhere else.
I paid and waited...
It never showed, so I contacted the seller and he said he’d trace, because he had insured it.
He got back to me a couple days later and said the carrier could not account for it so he refunded my money.
I told him thanks for trying, but always suspected he just posted it with the wrong price. I never bothered checking later to see if he posted again w/the more common price.
That same thing happened to me on Gunbroker. I purchased a
fine Lithgow No.1 MkIII SMLE for a steal of a price but seller claims my FFL’s signed copy was never received.