Long story short, Zurich (insurance provider for my Citibank Signature Card) rejected my guaranteed pricing claim because the better price is not printed on a physical catalogue, despite the better price comes from the same store as where the item was originally purchased and the store has a physical Australian presence. According to the T&C a screenshot of the website doesn't count.
This makes the guaranteed pricing insurance a practical joke because most of the stores that offer better prices don't print catalogues any more.
Are there any credit cards out there that offer more useful guaranteed pricing insurance?
28 degrees.