[Resolved]  Samsung — mic problem of my mobile samsung grand 2

sir i have submitted many times my mobile to samsung mobile service center for repair of my mobile mic problem, the mic is not working properly, but they have not repaired my mobile following the details of job card made during submit on of my mobile to samsung mobile service station first time job card no [protected] dated 06/10/2014 second time job card no [protected] dated 08/10/2014 third time job card no [protected] dated 28/10/2014 fourth time job card no [protected] dated 9/12/2014 address of samsung mobile service station as attached in photo proof my mobile bill as attached on my photo proff