Hi Marian,

We provide premium support exclusively for users who have purchased the premium plugin. Please provide your license key or email so I can verify your purchase.

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Regarding this issue, we always keep the main bundle and bundled sub-products on admin orders. This is better for management and accounting.

If you want to hide the main bundle, please add the custom code below. (How to add custom code? ↗):

add_filter( 'woocommerce_order_get_items', function ( $items ) {
    foreach ( $items as $key => $item ) {
        if ( $item->meta_exists( '_woosb_ids' ) || $item->meta_exists( 'woosb_ids' ) ) {
            unset( $items[ $key ] );
        }
    }
    return $items;
} );

Remember to set the bundle's pricing as auto-price and use the percentage discount when needed. The prices will be shown correctly in the admin order details.