Consumer Redressal

I ordered an Asus Zenfone 5 from flipkart on the 3rd of May. Order ID is:OD202749320137818300 . I received the phone on 9th of May at around 10:30am. I tried putting in the micro sim from the mobile store but the device was not reading any sim cards(after trying with 3-4 different network sim cards). I addressed my grievance to Flipkart at night and they called up the next day(10th may) at around 8pm asking me to use the eraser and to reset the phone. I was told i would be called within next 24hours again but that did not happen. After about 48 hours i called Flipkart and again lodged a complaint that i wasnt called. They told that they would call within 24hrs and that they are really sorry for my plight. Today again, 24hours have passed by and i have receieved no call from them. I hereby request Consumer Forum to take the necessary steps. Thanking You.