Prestige — glass top 4 burners

I bought a prestige marvel 4 burness glass top kitchen applaince. Within 45 dsys o[censored]se, the glass top got shattered of its own while my sister was cooking. Fortunately nothing happened to her but there was a great risk of her being hurt. I logged a complaint with prestige customer support with reference chan364840 on dec 2018 and nothing happenned for over 4 days where in i had to call them number of times. But they were not responses, he said he will speak with his senior