Venus Home Appliances — venus water heater repair not responding properly by vajra coo land madurai

Address:

Vajra cool land k pudur madurai

Sir my water heater was not working when i submitted my problem to the service center at last month, they came and found problem then after ten days they changed the filament. Aftertwo days again the same repair in my heater, till now they don't have taken any action. For the past twenty days this problem is going on, daily i contacted the company but they don't take necessary action. What can i do?
This is my final attempt. Please send the proper worker to me.