Micromax — After service problems

Address:	Salem, Tamil Nadu, 636406
Website:	micromax

I have given my mobile micromax canvas A210 for having problems with mic, power button, volume button in micromax service centre located in salem.After one week they have returned my mobile.The above three problems was solved but then i came to know that my touch was not working in a particular place around straight to the down volume button . I then went to the service centre and complained about this problem.They said that they will change tye software and check that.After that also it was like that and they said they can't do anything.I asked them to change the touch panel but they asked me to pay.I refused that the touch was good in working before i gave them for service.I was helpless. The service centre is for repairing and solving problems but they had given me my mobile with a new problem.so please kindly take respective action against them. Thankyou.