Bought Micromax Doodle A111 and getting harassed

I bought a new micromax doodle a111, it was an defected product so the company service center replaced and gave me a new one . But the set they gave me in replacement was also
an defected and its only 2 day’s of usage . I am an working person so i am felling harassed by getting leave from office and going to them every day. I don’t trust there set any more and want my money back.