Sad to hear that. I prefer it over redmi 15c ... It's in the same budget with slightly better battery, screen, camera and other specs but Samsung has larger network and good quality after market parts available that's why chosen this one but it feels...

Is it of any use to go too Samsung customer care. Just bought the phone a month ago so it's still in warranty. Can you please suggest?

Yes facing the same issue with WhatsApp voice notes ... Had a daubt that the mic is not working properly but on call people hearing my voice clearly... But on WhatsApp volume is very less