Sumsung — samsung j7 pro mobile display quality

Address:	Chennai, Tamil Nadu, 600042
Website:	www.samsung.com/in/support

I had purchased sumsung j7 pro 22 oct 2017 & from trouser packet felt down first time and display become black on 13 nov (20 days later of purchase)
Sumsung made very poor quality recent mobile
Ask for free display replacement but there asking 4800.
https://contactus.samsung.com/customer/contactus/formmail/mail/MailQuestionGeneralNew.jsp?siteId=50