Quality Battery charger Tarraco Hybrid

Moin, with my Tarraco Hybrid Bj 9/21 the cover of the battery charging flap has fallen off. Apparently two artificial openings just broke away during the frost. Over night the flap was open for charging, let itself be closed to the start of the journey even without pressure. To open the flap you have to press in always for a short time and then the gap goes up to open it, that was as always and suddenly the part falls off there. Without having pulled there somehow with force or something. In the game was and I have been driving cars with tank covers for 24 years, I push the whole thing to bad material choice in conjunction with a bad construction. In other words warranty case, car is 15 months old. The service consultant says of course force majeure because of the low temperatures. I find a sporty statement, it was this morning -2° C, what happens then in a real winter. As said with other cars I never had any problems there. The car has no problems with the temperatures. I’m a bit disappointed by the car now, especially the price/performance ratio. Do you have to live with this kind of life at Seat or is there something else because of warranty or coolness?