Panasonic — Problem in smart phone in 20 days so replace

Address:

Patna, Bihar

I have bought a panasonic p51 smartphone from amazon.In by online purchasing. After 20 days its camera has problem. I have complained about it in company and demand for replacement because it is unibody mobile. But company told u send for repiring if we unable to repair we will replace it . Now its 20 days to sent my mobile to panasonic hq delhi but no update they are able to give. I want replacement.