If you are getting what is shown below then I would just try at different times of the day.  This is how it looked to me a few minutes ago when I did the same thing that I did earlier and was able to get the phone number.

 

contact 5.JPG

Look at the times that are in the next pic.  I notice that many of your posts on this thread are outside of those times, when the call centre is not pen to Australian members. Try during these times shown by the big red arrow.

 

contact eBay 6.jpg