MacBook M1 boot up problem. Keeps on restarting and never turns on.

my mac m1 has started to restart by itself and never boots up when i went to service centre they said they want to replace the motherboard and asked to 45000INR previously also i had got issues and they replaced keyboard and trackpad. i was told they can't make an exception in here in this case. The service is so bad that I was told I'll get a call back but didn't get and then later I connected with other two executives by my own and they said they can't give an exception even it's the device issue.