public function get_refunds() {
		$cache_key   = WC_Cache_Helper::get_cache_prefix( 'orders' ) . 'refunds' . $this->get_id();
		$cached_data = wp_cache_get( $cache_key, $this->cache_group );

		if ( false !== $cached_data ) {
			return $cached_data;
		}

		$this->refunds = wc_get_orders(
			array(
				'type'   => 'shop_order_refund',
				'parent' => $this->get_id(),
				'limit'  => -1,
			)
		);

		wp_cache_set( $cache_key, $this->refunds, $this->cache_group );

		return $this->refunds;
	}