Let me mention WalMart, and Borders as two US companies who would not take my credit card in payment for goods to be sent to my son in Hanover NH. Pretty happy to take them when I slide up to the counter in person though. It's a bummer right enough, I use Paypal, and that costs, but not a lot. On one occasion a company I ordered marine electronic equipment from said they were not allowed to send the goods outside the US, or the supplier would cease trading with them. [This sort of equipment is lots cheaper in the US.] Anyway the guy at the store sent it to his home address stateside, then sent it on to me, no extra cost. Now that's what I call service.
John