Automatic Shipping Calculation using the WooCommerce Australia Post Shipping plugin, rates are provided by the Australia Post PAC API. The PAC API rates are the public rates offered at the official Australia Post website.

The Australia Post PAC API does not deliver Australia Post account rates or negotiated rates. If you are after Australia Post eParcel account rates please go to this product. https://www.extensionworks.com/product/woocommerce-australia-post-eparcel-shipping-plugin/

The plugin is set up for the new Australia Post ‘If It Packs, It Post’s’ range.