Xiaomi India — Phone is not repairing properly

Address:

395002

I gave my phone for 3 times service in warranty period but same problem was not solved, & from customer care not giving proper reply. I m businessmen, i used ur 4 phones but this is the first time its too highly headache, i[censored] can't do anything, give me a new phone or give me my money back... Or i will take legal action... Need your response immediately