''Chat With Us''   That's the link for live help.  It will open up as  a pop up so make sure you don't have pop ups blocked in your browser.

1) Keep everything as simple as possible, probably at the level of an 8yo child. 

2) Be prepared for them to say 'I understand' when they don't understand

3) They will give the same generic advice you can find by searching help

4) If you don't accept that advice they will tell you they have passed on your details to someone else in ebay to help you

5) That will be the last you will hear from them, forcing you to go to live chat again, repeating the process

Much better just to ring and ask to speak to someone in Australia.