Miicromax mobile handset
No satisfactory service

I purchased a micromax gc 360 mobile handset on 6/07 within one week it stopped charging and switched off permanently. i visited the service centre at laxmi nagar where they changed the battery and told me that it will b fine now. but the same probelem continued . i again visited the service centre, wasted three hours and then the told me that it will take 21 days to repair it. i just completed my engineering and all interview calls come on my mobile phone . so how can i survive for 21 days and what if i skip any interview during this period.

kindly consider my case and take required action