Need help from someone with a US address or post box

I won a action on eBay for a card that is much needed in my Pc. It didn't say in the auction that they'll not post overseas. When I try to pay with PayPal it says invalid address please change. I've messaged the seller 3 times with reply. Does anyone have a US address I can post it to? I'll cover all costs.

Please let me know asap

Ive got a borderlinkz addy.. pm me and Ill flick u the details