Thanks for the plugin by the way.
I have got a little problem with a zipcode been invalid at the correios.com.br but on my site it accepts and give a shipping quote.
Here is the scenario: I was trying to setup and test the shipping extention for a product.
The correios website tell me that the zip 2072094 is invalid, but the woocommerce extention still accept the zip and display a shipping price.
The right zipcode is actually 20720294 instead 2072094
Is there a way to fix this validation script?