Dear Ms. Saito,
Good evening.
I would like to report to you that IDR 50,000 is for doctor on call fee.
On 14 Jan 2016 at 18:19, confirmed by phone with Dr. Amrul.
Hope the information above could meet your need.
Should you have any inquires, please kindly do not hesitate to contact me.
Thank you very much for your kind attention.