That might be so.

The reality is Fastrack Couriers is a terrible company. You just have to look at the reviews on the internet to find out how poor their service is: https://www.productreview.com.au/listings/fastway and https://au.trustpilot.com/review/www.fastway.com.au

If sellers want to use Fastrack Couriers then that is their prerogative, but I can assure them of one thing - you won't get me buying goods from you ever again.