No, you cannot exclude certain labels/ pricing.
You will notice we have added an option to the settings page, if a label price is not added, you have two options:
1,The fallback rate will be offered. You will need to add an amount to the Fallback rate and re-name the title, if you like.
2, Or you can select the option that the service type (Normal user price or Frequent user) you have selected, the label price associated with the suburb and post code will be used as the amount on the checkout page. This price is obtained from the Fastway API and is not an amount you entered into the label.
As there is no way to limit the cities (City -Suburb/ Post Codes) shipping in Australia, your customers can always enter a City- Suburb/Post Code on the checkout page using WooCommerce, we need to ensure that a price will be presented for Fastway AU.