Havells India — I am complaining about worst experience of, "after sale service of havells"

Address:

New Delhi, Delhi, 110094

I purchased havells wall fan last year and it comes with 2 years guarantee, but the guarantee is not usable because havells gives worst service. I contact with havells so many time but there was no any service, every executive just giving time for a day. I talked with customer care senior executive (Ms. Aasha, Mr. Hitesh, Mr. Ishu) but they give time for a day but not any appropriate solution.
Umang Aggarwal
Contact no. [protected]