Landmark Online India / Landmarkshops.in — flask

Address:

560100

We bought a flask about 2 months ago from Bangalore forum mall and it was sparingly used like 3 - 4 times. It's broken now.
I didn't not expect such substandard quality.
When I pay more than 600 for a product I would also expect a promising quality.
Please look at the photos.

Please let me know how to get it replaced.