Ok, my adventure has not been finished. One of my four flights were canceled, GOl offered alternative flight that works for me. Another flight was rescheduled 15 min ahead.

Problem is, as GOL said, that tickets must be reissued by the agent. But Lastminute has not managed to do it for two weeks. All I have in response " your request is being managed blablabla...".

Is there any way to reach the agent for reissue the tickets?