Fastway can only obtain rates on the Checkout page.
THE FASTWAY API REQUIRES THE FOLLOWING:
In this order, the first requirement is the:
City / Suburb ( Customers are really required to enter the Suburb)
Example: Doncaster, Geelong, Townsville
The second requirement is the:
Example: 3108, 3220, 4810
Use these combinations to test with:
Burwood East 3151
Fastway uses the City / Suburb and the Post Code in that order to provide a shipping rate to your website.
When this information is entered on the checkout page, City and Post Code, a request is sent to the Fastway API to retrieve the relevant service rate for the city and postcode entered.
In the screen shot below l started typing in Burwood and you can see there are a number of options for Burwood and the Post Code must match up to the Suburb.