Havells India — Steam iron not working havells

Hi I bought a steam iron in June 2021 from heaven's. I have stopped working in November I bought it in June. That I've blocked a complaint to customer care on November 25th. A technician visited and he confirmed that the default is due to a leaked tank which is a manufacturing defect. Told me that he is going to order a new iron for me. After that he closed the complaint and the no one has called me back after that I am trying to call customer care again and again but there is no response from anyone and no 1 is trying to listen or resolve the issue. They also disconnect the call in between when we are talking so I'm not getting a resolution please help me.