public function GetVoucherInfo($number, $sales_point, $type)
	{
		$req = array(
			'FeCompConsReq' => array(
				'CbteNro' 	=> $number,
				'PtoVta' 	=> $sales_point,
				'CbteTipo' 	=> $type
			)
		);

		try {
			$result = $this->ExecuteRequest('FECompConsultar', $req);
		} catch (Exception $e) {
			if ($e->getCode() == 602) 
				return NULL;
			else
				throw $e;
		}

		return $result->ResultGet;
	}