The shuttle service staff were absolutely terrible. We waited at the airport for over 2 hours without being picked up. They claimed to have come by twice without seeing us and made no effort to call back or look for us. Other companies' staff came to the entrance to ask around, but the shuttle staff never attempted to contact us within the two hours. We finally noticed a vehicle with the company logo and made our way to the rental company. After we were picked up, the staff's attitude was very poor. The return was almost delayed due to the company's staff negligence and mistakes, nearly causing us to miss our flight. The shuttle lady was still dragging her feet and, despite knowing our tight schedule, she shouted at us, saying it wasn't her problem if we missed our flight.