Consumer Redressal

I bought micromax canvas Knight A350 on 21st October 2014. It suddenly stopped charging. I went to micromax service centre on 25th June 2015 but till date they did not return me the phone instead they gave me a new jobsheet number over the phone. My old jobsheet no.-E030741061517502503 (dated-25/6/2015) and my new jobsheet no.- E030741071518034270 (Dated-20/7/2015).Kindly resolve it at your end at the earliest.