Hi @rivail1985,
I would like to be able to enable the zip code request in the customer information next to the address, and have Woocommerce calculate the shipping fee and include it in the billing.
Thank you for sharing more details on what you would like to accomplish.
If I’m understanding correctly, you want to add a postcode custom field below “Cidade” in the cart and on the checkout page so that you can store the postcode and have it in your orders and invoices.

At the moment, there’s no default option to add a postcode for Mozambique in WooCommerce, and customizing that can be done either using a plugin or it would require a bit of additional coding.
We recommend the Checkout Field Editor extension with which you can add your custom field. You’ll find more details on how it can be done here:
https://woocommerce.com/document/checkout-field-editor/#adding-and-editing-custom-fields
It comes with a 30-day refund policy so you can try the extension and get a full refund within the trial period if it doesn’t work the way you want.
As per customizing with coding, there is a nice tutorial on our Codex page here:
https://woocommerce.com/document/tutorial-customising-checkout-fields-using-actions-and-filters/#section-6
If you require more help with the actual coding, we’d recommend hiring a developer or one of the customization experts listed at https://woocommerce.com/customizations/.
Cheers.