Eureka Forbes — Service delay for the product under warranty

We have been facing issues with the water purifier for the past 6 months, every month/ 15 days it stops working frequently and we had to call customer care. the product is also under extended warranty [paind around 11k for 2 years of extended warrenty]. For the last 15 days product is completely not working, have tried reaching the customer care multiple times, but no luck, customer support team lacks knowledge on the customer issue, every time they repeat the same thing "you will get the technician as soon as possible", No specific ETA.
If you can't provide the service, please refund my money paid for an extended warranty, Please don't waste my time.