I've had a long record of overseas air ticket purchases being rejected by Amex - AA, CX, BA, SA you name it! I had got to the stage of calling Amex before making an overseas purchase in order to avoid the inevitable ping on the mobile telling me to call them after the transaction was rejected. Tonight I forgot to call them when paying for a BA fare. Instead I got a ping with a safekey code which I entered and the transaction went through. The key also arrived by email a minute or two later. Customer satisfaction improved! Is this new in Australia? I don't know as I haven't had an airline transaction for a couple of months.