Shush, I've just realised I used product code C000100W402A (the AU/NZ code), but they are actually selling the C000100W404A (APAC, CALA, MEA, non EU member states) model. Will have to ask for a new promo code :-(
Was fine. I emailed the person who sent the quote and they said to let gowifi know they would honour the code. I did and they did.
Could still pay by credit card by ringing them. It's on the way :-)