for those who e book your ticket via a travel agency, an company service demand will be applicable. The agency charges the rate as its support cost. Most of the travel agents in Bangladesh demand an sum among BDT 500 https://forums.rivals.com/threads/%F0%9F%93%9E-1-857-346-0204-kuwait-airways-modify-booking-how-to-change-flights-and-dates-efficiently.1154305/