I have a faulty Google Chromecast device which Google has offered to replace (ordered from Google directly).
I was surprised to find out I have to print out 2 forms (3 copies of both forms) and another 2 forms, so 8 pages in total to send the device to Hong Kong.
I also need to complete a security declaration that that the shipment doesn't carry batteries etc (Google hasn't asked me to remove the batteries from the remote, which I will) and provide my drivers license details.
This seems to be overkill - doesn't a business with activities in Australia need to allow for a product to be returned within Australia?
I don't have an answer to your question (I'm wondering the same) but the process is indeed onerous and confusing. You'd think even grey import returns would be less complicated.
No use contacting support though, they won't have a local return address nor any different instructions.
Guessing you got the CCwGTV… Never again :s