Product faulty out of box - customer service non-existant

Hi, the power kit that came in the box is faulty. I know this because I was able to activate and get the doorbell working by plugging it into a spare port on my security camera NVR. Using this solution long term is not acceptable though because it does not provide me with internet over ethernet, and my NVR is a long way from the doorbell location.

All I require is a spare part but as I pointed out in my previous post, getting phone support is non existant. Finding email support is also impossible here in Australia, although I did just find an email address in the Covid article. Hopefully someone responds to that unless you can provide a solution other than directing me to an article to read.

I am now 11 days past the 30 days since recieving the product to return it no questions asked. But all I want is one specific part.