Samsung — Faulty update from the company damages motherboard

My phone Galaxy M31s started to restart suddenly and the issue continued for 2 weeks when visited the service center they are telling the motherboard needs to be replaces and will cost 9000.
the motherboard issue in the model is a manufacturing defect. There were over, at least, 700-800 people with the exact same complaint in the internet and Consumer Complaints forum regrading their phones (all Samsung M-series phones). The update caused the motherboard to fail
Please, have a look at the disaster the updates have caused. And kindly refund the amount .It's a blunder done by Samsung and expecting customers to pay 9-13k to get the motherboard replaced.