That's a good trick. Fastway is Australian, the GSP ships from the US or UK.

IF your item was passed to Fastways, it was done by the courier (probably FedEx) that brought the goods into the country. I'm not sure why they would do that, but it is certainly not eBay's or Pitney Bowes' fault. They certainly have their faults, but being held responsible for the actions of third parties is not among them.