Arttravel: that is a very good point 😊 Having said that I have used this company(ticket.no) several times before without any issues. They have quite a good reputation here in Norway. But again, I have never had to change tickets or anything like that 😊
Also, Lufthansas website was a breeze compared to the third party company where you constantly have to say yes or no to extras and where they charge you MORE than double the price for luggage compared to LHs own website. The price you end up paying via third party companies sometimes is a quite a bit higher than the price that caught your eye in the first place 😉