Siemens Home India — Not working

We have purchased fridge, micro oven, washing machine and dishwasher from dj appliances pvt ltd in the year 2016. We started facing the issue in the year 2019 we have raised complaint and so much time technician has visited our home. Also collected the charges for parts. Now in June 2021 the technician has visited and collected the charge for some spare parts but still they have not sorted out the issue. Now in our home 2 fridges, 1 washing machine and oven is not working there is no proper response from the service. We have mailed many times about the complaint. In trust we have purchased all the products in siemens but we are very much disappointed.