I have booked many many flights online, normally I don't have any problems until I used Resecentrum Gruppen. After booking with Resecetrum Gruppen I of course checked my confirmation. I then realized the flights didn't match whatt I just booked. I called customer service and the customer agent almost laughed at me claiming that It was my fault and there systems works optimal  and are among the best I the business. I have no problems admitting if I make a mistake. This time it was not the case. I'm going to Berlin to run the marathon and I was of course concerned booking the right time. I ended up with a return flight 08.45, 15 minutes before the race starts. Hmmmm no thank you Resecentrum Gruppen. I will never book through you again and I will warn everyone from this company.  Poor poor service, and that it also what many other people say when looking through the web. 