I tried to change a ticket on your website and it shown me to call your office in Istanbul to make the change, I kept calling them and sending email to your office in Canada without success, I ended buying new ticket and the previous ticket was not changed, every time I was calling and an agent answer, they keep me online saying that they will make the change and they take more than 15 min and then they cut the line !!! this happened at least 7-8 times finally someone told me that they can't refund it from their side but they will keep it opened ticket for 2 years and so I will have the time to return it when I reach London airport. In London airport they said no it is not possible you should do it in Toronto !! however, now the problem is I received my cell phone bill with 601 Canadian dollars extra-charges for my calls to your office in Istanbul !!! who should clean the mess made by your unprofessional agents? Simply your agents burned my nerves and made my trip horrible.Attached is a screen shot of email reply from your London office nine months after my email to them.!!!and attached also the bill with extracharges I received because of your office calls. MY CONTACTS: +[protected] [protected]@gmail.com Miles and smiles number is [protected]