Apple India — iphone x

I am loyal apple customer using since iphone5. Last year on launch i bought iphonex. I am very sad to say iphone is not like before. I have save so much to buy this phone for a lac rupees and within 1 year span it started showing problem. People cant hear me properly in call. Phone sometime doesnt get charged with original charger. I cannt afford this prob after spending 1 lac ruppees. Plese xhange thia diffective set. I dnt want to get it repaired. After a mo th its warranty will be over and i have to suffer all through out. Please i request you to change my phone. I used all my savings just to buy a phone which comes out defective within a year.