I bought mine from the guy on Ebay back when it was $100. I had no such issues, other than the bows wanting to fall down while installing. But it fit my wagon great. Nice material, and enough for the pillars and sunvisors (which I havent covered yet).
So either the Aussie wagon is different or the company just has bad quality control, probably the latter.
Did the binder clip method to glue in the edges. Everything pulled nice and tight.
Also, I forgot to note the location of where the bows came from, Heard they were different front to back. Also there were 3 holes for each bow to go into.