Micromax Informatics — my micromax android one phone

Sir,
I have submitted my phone to nirman vihar micromax care. I also have the mobiles warranty period now it's over. Before diwali about 11-13 october. They say me we will return it phone after 10 days. When i go there after 10 days they are saying me that ur phone is not switching on. But when i give my phone to them it was switched on and they also get an option on that phone and they connect to wifi do whatever they do. And they were telling me it is not switching on. When i ask him to repair it then they also tell me to take ur mobile to sec18 noida care they will help u with this we will not repair ur phone. Ok. When i take it to noida then they are saying that the components of this mobile is missing ex-motherboard chips etc. Now u tell me wt to do. They r fraud /theif service centre. I want my phone in write condition. If it is not working i want a new model of that phone okk.

Thanks