Dell India — Dell 15g gaming laptop

I have purchase a dell 15G laptop from reliance digital 23 july 2023 from i purchase a laptop the auto shutdown this system is faulty i have also inform reliance digital but they tell the dell service center will solve,
from then i am calling dell support team n they have doing some diagnoses but the laptop still the auto shutdown and am telling them to give me the new system but they area not given and doing repair n repair

am paying a emi from my hard money and they area just ignoring me this issue solve