public static function revoke_access_to_download() {
		check_ajax_referer( 'revoke-access', 'security' );

		if ( ! current_user_can( 'edit_shop_orders' ) || ! isset( $_POST['download_id'], $_POST['product_id'], $_POST['order_id'], $_POST['permission_id'] ) ) {
			wp_die( -1 );
		}
		$download_id   = wc_clean( wp_unslash( $_POST['download_id'] ) );
		$product_id    = intval( $_POST['product_id'] );
		$order_id      = intval( $_POST['order_id'] );
		$permission_id = absint( $_POST['permission_id'] );
		$data_store    = WC_Data_Store::load( 'customer-download' );
		$data_store->delete_by_id( $permission_id );

		do_action( 'woocommerce_ajax_revoke_access_to_product_download', $download_id, $product_id, $order_id, $permission_id );

		wp_die();
	}