Water in the interior

Dear experts, this morning I had to slow down a little bit more and it happened exactly what happened when it rained before: A flood of water ran down the windshield. It’s new, however, that it ran down on the inside of the disc this time! Is this a typical weakness? Next week I already have an appointment in the workshop because of the tailgate. I’m honestly a little angry, because I bought the vehicle a week ago from a renowned Volvo center, who have the reputation that their vehicles are a bit more expensive than others, but really perfect. I could have bought another old one (if there were any). I didn’t have such problems!