Poor Service

Very poor service delivery from Renault. My Mother has the Renault Kwid 2023 model. The petrol Gauge keeps getting stuck on a brand new car. All the service departments tell me every time is that the key must be taken out and the driver door opened to prevent this. This cannot be the solution. This is unacceptable. If this is a problem Renault should fix the problem not give my 60 year old mother that ****. I want a better solution