Micromax Informatics — replace earphone

Address:

Ahmedabad, Gujarat, 382415

Dear sir, my smartphone micromax q4311 bought 2 months ago and its earphone not working properly now so i go to care center at ctm. They are not replace my earphone just because one rubber bug not available on one side speaker. It just missing by me so its minor problem they said me not replace this earphone. I wish take some action against them. And permit to replace my earphone. Asap