I,Kamal Biswas at Chakdaha, Nadia. I brought a Micromax Q7 mobile on last Septmber-2010. But yester day i saw the SIM -1 closed. At present sim 1 do not any work. But sim is ok. Also sim 2 has work normally. Please help me. and told me nearest service centre at Dharmatala or Sealdah.