Kutchina Appliances - Kutchina cooktop glass shattering

We bought a Kutchina * Brass burners Cooktop a few years back (receipt attached).

The Brass burners started to rust soon but it was still functional. But a few days back suddenly the whole tempered glass broke and glass pieces were shattered across all the kitchen (attaching pictures)
The stove was off and there was no external force applied. Luckily no one was around the kitchen when this happened otherwise this would have surely injured the cook.
This kind of accident is unacceptable as this is putting the customer's safety in danger. I want to raise this complaint in relation to safety requirement for the customers. The kind of risk this product is imposing is appalling. The customer needs to be compensated for this.

I tried calling the toll free customer care but the line was never connected. So I am here writing this email.