Bosch Home India — BOSCH washing machine drum replacement not done for more than 90 days

I have raised a complaint for my BOSCH washing machine drum noise and water continuously taking (not stopping), this complaint I raised in the month of october(already 90 days). MY WASHING MACHINE IS IN WARRENTY PERIOD . Technician came checked and recommended for a drum and electronic board change. And he also mentioned drum is not available for the model I have, Only company will call me and tell what can be done. I have not received a single call from BOSCH company, In spite of me speaking to the customer care more than 30 times.
They say they will check the status and call back, no one calls back or they put the call on hold and never they come back.
We are stuck with this broken washing machine for more than 90 days. I need a solution as soon as possible