Two of the Big 4 Australian banks - Commonwealth Bank and NAB - have now abandoned Adani's monstrous Carmichael coal mine.

But Westpac has so far refused to rule out funding the mining giant's coal project.

The Australian banks aren't usually held accountable for their investments from their customers. But then, this is not your usual project. 60 millon tonnes of coal per year mined from the Galilee Basin. Thousands of coal ships through our Reef. Trusting Adani with the Great Barrier Reef.

Can you contact Westpac right now and demand they stand up for our iconic Great Barrier Reef?

If you're a customer of Westpac, be sure to mention that in your email, and how long you've been a customer for. Most of us have been customers of the banks our entire lives. If enough of us act together, the banks will have no choice but to take notice.