not shure if this help you , , but as i have read and attempt to use can dump in USA at gas pump close to border , any zip work because you may not enter LETTER into zip code prompt ))
maybe for foreign amex to push through to USA website, can use same billing/shipping ??
years and years ago , , one good exploit we had was stealing verified paypal with our spybot 1.2b botnet ) we would enable keylogger from login, then turn bot box in to sock 5 via IRC cmd . .
we then use to add credit card - > americen express
as long as CVV was rite )) you could put ANY billing address . . it would add card , then it would say you must enable expand use to charge >2k to card ))
the exploet with this was to do with it would add a confirm billing address to card to as you drop , we also wud be able to ship the pay pal debit masturcard to the drop since our phonie amex card was forcefully add with invalid billing
this was back in 2006 ) i like to frequently chang my way as i travel a very lot back and force . maybe this still work on paypal. just example however)