Intex Mobile — rgarding the repairing of my cell phone intex aqua5

Address:

Jind, Haryana

Sir .. i purchased my intex aqua5 on 11 july 14 but its battery was nt wrkng properly so that i submit my phone to service center on 6 dec14 they give me sheat no. n say that i will take 20 days to rectify on 8 jan15 i received my cell phone .but its not even switch on now... so can i do sir they spend my 30 days but not repaire my phone ..but they damaged it too much. so sir plzz take an action againsed it plzz. regards..