Problem is, you are submitting data as POST data, but verifying nonce from GET data.
Here is how you can create a nonce field in a form easily:
wp_nonce_field( 'add_new_addres' );
Actually, I personally don’t use more than 1 parameter when calling the wp_nonce_field
function.
Then when verify use the following code:
if ( ! wp_verify_nonce( $_POST['_wpnonce'], 'add_new_addres' ) ) {
wp_die( 'Are you cheating?' );
// Anything that you want to display for unauthorized action
} else {
// Good to go for next step
}