Just to add to the other negative feedback.  Be very cautious of using Sendle.  You might save a couple of dollars up front but it could come at a cost.

I had Sendle deliver a package, they completely ignored the delivery instructions and as a consequence the package was lost.  Despite being negligent Sendle refused to cover the item.  It cost me $300.  They are certainly not a trustworthy or ethical company.  Reviews elsewhere reinforce this too.

I have had to claim insurance with Australia Post a couple of times over the years and there has been no issue whatsoever.  I would now always spend the extra couple of dollars up front.

Its a shame that eBay would choose to make a disreputable company their default carrier.