Consumer Redressal

Hi, I\'ve submitted my Karbonn A37 tablet for repair at the service center (Shankla Telecom, Sector-17, Gurgaon) on March 1 2014 and at that time they said that they will call me with in 2-3 hours regarding the charges associated with it. But since then there is no call from their side and even when I call them they say that its not repaired yet and they will call me. It\'s 24 days now from the date I submitted the tablet and still there is no specific date for its return. Please help me.