So, I shipped out a card, and the buyer is claiming that I sent him the wrong card and he took a picture of it but I can't see the serial number of the BGS card that I supposedly sent him.
I told him that I would refund him after he sent the card back to me (I want to make sure that this Ebay buyer isn't lying to me by just posting a picture of another BGS 9 card of the same player since the other Ebay buyer I messaged who I did sell the same card to hasn't responded to my queries). Is that a reasonable request? He's demanding that he get reimbursed right away and that he'll send the card out on Saturday.
Is it reasonable that I ask that he send the card back? It's not a big card but it's still a $50 card compared the $113 card that I supposedly did not send him. I'm still dubious that I sent him the wrong card because I literally match up packages and cards as I ship them out to prevent these sorts of errors.