Hi,
1) I only see Order Notes.
You can use this plugin: https://www.woothemes.com/products/woocommerce-checkout-field-editor/
Or you can add this to your child theme functions.php
file:
// remove Order Notes from checkout field in Woocommerce
add_filter( 'woocommerce_checkout_fields' , 'atelier_woocommerce_checkout_fields' );
function atelier_woocommerce_checkout_fields( $fields ) {
unset($fields['order']['order_comments']);
return $fields;
}
2) This looks like it’s caused by your customisation, ie – the one page cart. Have you tested this on a normal /checkout/ page?
Thanks.