hi,

recently i did my change of date and it did cost me 100 riyals......tht is n qatar ailine office...but when enquired in a travel agency wht one of my frnd who works their said was tht one change of date is free and if you want to change it again tht travel agency charges 110 riyals....but its constant 100 riyals for how many ever changes you make if it s done in qatar airways office...