So Im getting to the bit where Im redeeming a gift voucher $5.99 but its stuck on asking for a Promotion Code. There is no way to bypass it.

What to do?

Well that was a waste of $9. No matter what you do, remove your credit cards, remove all your credit card addresses that get automatically. The system wont take the gift card# it sends you. takes your money though.

Ok whoever reckons they can use a NZ CC on Amazong to rent movies has led us astray.

Here in lie the problem.

Error 2039

Even if you're paying with a Amazon.com Gift Card or promotional balance, to purchase Amazon Video titles you need a billing address and valid payment method from an eligible location in your 1-Click settings.

So you cannot as suggested on here before remove your credit cards and you cannot remove their addresses to fix the problem.

There's no need to create duplicate threads to have a rant.

As per your other duplicate thread please ask in the private forums of which you're already a member of. We prefer to keep things like this private.