Micromax Informatics — My canvas juice goes black or grey screen

Address:	Gurgaon, Haryana, 390025
Website:	form help from company so i cant miss my important works

I bought micromax canvas juice to on 12 nov 2015 . from second me my friend was surfing on internet nad suddenly it got black out .after 5 to 6 hours it got resolve it self.second incident happen in january on 24 .then in feb 5.on againg on march 8.and agian on 23 of april.it go as when connected to much to internet or by playing more games .
if you can resolve me make exchange this phone but juice 2 or any of juioce version if you wanna contact me pls email is [protected]@gmail.com