Micromax Canvas A90 — Phone not working

Address:

Gautam Buddh Nagar, Uttar Pradesh

First of all it never gets charged...and secondly I have already given my phone at the Micromax official service centre for thrice yet I am facing the same problem... So there should be the replacement of my phone... And the customer service do not provide any service...I have already submitted my phone for three times for a week each, yet the same problem pops up again and again... The phone is already in replacement period..