Please do allow international credit cards to make purchases on the site. Not all of us have US credit cards even if we do have US addresses for the shipment.
For an alternative You could use PayPal
Not really the site only allows PayPal with US credentials, not international PayPal accounts
Oh, OK, I didn’t know that
Although in Canada. I do use an American credit card and get my orders shipped to a US post box…
Canadian credit card works just fine. I ordered my sensors without problem. (Shipped to my US office but paid with a canadian Credit Card)
I paid with my Mexican Paypal and received at a US address… 20 cameras, no problem…