Consumer Redressal

This is regarding non receipt of Original inovice for the the water purifier supplied by Eureka forbes Ltd .The machine was supplied by the company on 16/12/13 after taking full payment of Rs.12490/-. I have lodged complaint with company on January 2014 complaint No.89139732 but no response. Sent Registered notice on 17/03/14 no response. I suffer the damage as follows: As I have not produced the bill within 15 days of purchase, I was denied the amount by employer, the amount is reimburseable from my employer. As they are not producing the bill, I dboubt the machine is not original. In this circumstanced,I pray the the machine should be taken back by the company and refund the amount. Reimburse me the cost and damage for having cheated the consumer under monopoly position enjoyed by the company. Please advise me further course of action