Manipal Hospital — Ineffective patient card

My father Mr. Arun Kumar Nandi has been operated today. He is in room number 820A. The room service here is very very poor. No one is attending even after half an hour after pressing the bell. Even for helping in urination no one is coming. Such service is not expected from this hospital. I need an immediate solution to this or this is going to be escalated to the higher authorities.