I think as a buyer you have the responsibility to pay quickly and fully and to provide the correct shipping location. You also should have clear communication with the buyer if things aren't going smoothly. Waiting that long puts you in a hole. Good luck getting this figured out.
I don't sell or trade, but if you make me an offer I might listen
It's okay to say or do whatever you want as long as you don't scam
Don't bust sports cards if you can't afford to lose the money