Flipkart — want replacement

Address:

Salem, Tamil Nadu

hai sir/madam im Rahul kumar, i have purchased a red mi note 4g on 5.05.15, order id (OD[protected] but it has problems of video recording, mobile heating, hanghing, got turned off automaticaly while... I contact ur customer care then said to update version i did... But the problems is still not solved... Again saying to update version, how many times i do? Since one week im got tired of contacting ur customer care. And still i dont have got satisfied of your customer care service .. And i need replacement please try to understand my problem and take action for replacement.. Please take action as soon as possible... Otherwise i have to take seveare action ... So please understand my problem .