Everyone be careful with online booking via skyscanner through travel trolley. I asked for the cancellation of a book ticket and refund and told by the customer service department that you can get when the flight is near date,and advised me to call back one or two days before flight departure. So I called on the the day (30 hours before flight) and told by the staff to email us.So emailed them straight away but no acknowledgement of my email from travel trolley. Next day I called to check and got the reply that we cannot refund you as haven't applied for the refund and flight is departed already this morning. When questioned about the email and phone conversations there was no answer except we are sorry. Sorry for their incompetence as they cannot apply for the refund in the due time.