TLDR: JB Hifi NZ gave me a full refund on the Pixel 8 I purchased from JB Jifi Au after the phone developed a known fault with the display.
--
To recap, my Pixel 8 developed the vertical purple line which is a known hardware fault. I had purchased the Pixel 8 from JB Hifi online Oct 2023 (18 months ago), shipped it to a friends place in Australia, who shipped it to me. I contacted JB Hifi Au who told me to contact JB Hifi NZ. My expectations were fairly low, I expected to be told they couldn't help me.
I took my Pixel 8 to JB Hifi Porirua and left it with them. I called them a few days later to check what was going on. They'd had to contact head office because they have no repairer in New Zealand. They said because they can't fix it they would do an exchange for another phone or give me a full refund. They even did the AUD to NZD conversion.
Awesome service from JB Hifi, and totally unexpected. They'll get more of my business from now on given their top notch customer service.