Cambodia Angor Air and VISA
I just booked a flight on their website using my American VISA credit card. It went as far as the VISA Verification and would not go through. I tried several times and had the same problem. I called VISA and they could not find even the attempt at the charge. I told them about the Verification, and they straightened that out and it worked. So if you have problems call VISA and they can clear it up. It seems like you cannot do this on your own on the airline website, but it can be done.