Damn. Yeah, there are a lot of nostr business/merchant directories out there, I can see how easily someone could have zapped one of the listings, thinking that was going to get them the item. We have to be diligent. I always make sure to let folks know when I've received their sats, but like you pointed out, we don't know what we don't know! I'm glad you are able to send the customer the goods and hopefully not be hit too hard by that.