We're a UK based design company and we've posted to the states before, on more than one occasion somebody in the US has purchased something online and had it delivered here in the UK.
We've just received an order and the billing address is listed in the States and is a simply:
PO BOX 1234 (1234 as an example)
Is it common to have PO BOX number as a billing address in the US? This doesn't look like a proper address to me, but I have very little experience with dealing with US customers and addresses.
We use a PO box ourselves, but it is to hide our residential address from customers if we need something sent somewhere other than our studio. Is this the same in the US?