Micromax Informatics — My mobile phone automatically defective

Address:	122015
Website:	www.consumercomplaints.in

I have purchased micromax A300 canvas gold mobile phone before 2 years, it is automatically switchoff and start and frequently drop network tower. the cost of mobile is 15000 rs.at that time, i show in micromax care, they told me, replace the PCB mother card which is approximately 11000rs.how can i repaired this mobile in such amount. my question is that it is not repairable? how can i afford again sum of money. please, rply and resolved my problems