Not everyone is suited to buy expensive watches online, sometimes they can't get over the trust hump. No crime in that. If the card's date is bothering you you may have to let it pass and look for another deal somewhere else. To me the date normally doesn't mean much, but it might in this case. (BTW, the full serial number is visible on the movement in your picture.)
Is this being sold as a brand new watch? There are scratches on the lug showing poor workmanship from a prior strap change, and it looks to me like the strap is cracked and damaged and needing replacement. That would send red signals to me on a watch supposedly less than nine months old. This would be a pass for me for those reasons.