I called Celestron today to see if they have made a decision on repairing or exchanging the head. The technician said that they would exchange the head for a new one

2hrs later I was at Sheldon & Hammond and the technician didn't look happy. I think because I have been talking to Celestron service department in the USA. If they don't like that they should take the link off the Australian site and offer a support page.
Now I just need the counter weight and I will be ready to go