Hero Motocorp — Piston crack

Address:

Harshita hero show room, town -beda,teh-bali,dist-pali,Rajasthan 306707

Dear HERO
My self Jabar lal, from village-beda, teh-bali, dist-pali, Rajasthan 306707
I have a super splendar IBS bike, I purchase in 28 /10 /2019,
I am not satisfied because bike engine in cylender piston is crack, that region oil is leakage, I want replace this piston,
I am not happy for this,
Local area dealer showroom not responding to me, I have 5 year insurance, he is not claim,