Mokka X too hot

Good evening. The following problem. Yesterday my father had a message on the display. He could no longer give me the exact wording but he meant “engine overheated, waiting soon” or something like that. He was about 1km from home and then drove home. Yesterday he addressed me to it. He also drove briefly in the meantime without a further message. He had the temperature in view and was at 90°C? At least the pointer was on the middle. I then gave him a message. The receptionist said not to drive any more after the description, but she has to ask a service consultant again. He then said first he should look at the Kuhlmittelstand. My father (72 years) asked if he could not come by shortly… (are about 8-10km). The consultant then said that this would be possible of course. My dad went on his way. Shortly before the finish a message again. And the pointer rose to 130°C It was still about 1.5 to 2 km which he then drove so. Sorry already for the long text… I just want to have mentioned the whole story already. Anyway, the Mokka was then driven into the workshop. Water was probably then by now apparently empty. The water that was tilted after ran out just as quickly as it was inside. First diagnosis, probably the water pump/defected seal (Auto EZ 5/2019 with almost 21,000 km). Since the water then at once Schlagar In the meantime it is still being checked whether the possible consequential damage will be taken over. So let’s assume that ZK is not part of the connection guarantee… The car is practically new… Even the sevice consultant has said that he has not yet experienced it, that a water pump will break so early. How is Opel in terms of bulancy? Bzw. in how far away was. Service made so far both at Opel. Is it possible to blame the workshop? That’s the last thing I want… But you can’t expect a 72-year-old or basically a layman to do the diagnosis with a view into the engine room? And then the statement that you can also come by in the workshop? Tomorrow, at any rate, you will be able to look closely. That was only the first suspicion today. Maybe you can give me some information on the subject of kulanz anyway.