I put up a rare TCG card for auction and a buyer won it for $200+ on July 1st, but they didn't pay. I thought they were busy around holiday so I didn't send them message asking for money until Saturday. They replied on Sunday saying a family member just passed away and needed two more weeks to pay. So it's a total three weeks delay in payment. I need to visit my parents later this month and won't be able to ship, so I asked them if they would be able to pay before July 21st (it's just about the two weeks they asked for) but didn't get any reply. Plus the reason they're not paying sounds like a bad excuse to me, what should I do now? Anyone happened to be in similar situation before?