[Resolved]  Samsung India — samsung mobile j7 pro

I purchase samsung j7 pro mobile from mg mobiles india pvt. Ltd saket new delhi on 21 oct 2017 after using a phone about 3 months sudden problem is come in phone like on screen blue spots are coming and day by day they are increasing this shows shows the bad manufacturing of the phone of a samsung brand/ company plz kindly replace the phone or refund my money which was 21000 thousand it's a big amount for me
It's my humbly request to the samsung to resolve my problem as much as possible...