Beware of buying ticket from third party such as Bravofly, Gotogate because they have poor service and in the end the customers would be ripped off. So, just buy ticket directly from the airlines website.
I almost bought a ticket to Europe from Gotogate because it was shown in Skyscanner.net that its price was the cheapest. However, I googled that company first and found so many negative reviews. You can check those negative reviews in Tripadvisor website. Some of the negative reviews: Is Gotogate a reliable website? - Air Travel Forum - TripAdvisor, Bravofly - Air Travel Forum - TripAdvisor , www.sitejabber.com/reviews/www.ebookers.com ,