Sargam Electronics — Duplicate bill of hitachi 700 ltrs

I am asking for duplicate bill since 5-6 days now and no one is resolving my enquiry.
Below are the details :

Customer Name - Rashi Mahajan
Product - Hitachi 4 Door 700 Litres Inverter Refrigerator
Date of Purchase - 7/01/2018
Address - D3/ 3439, Vasant Kunj, New Delhi 110070
Mobile Number - [protected]
Email ID - rashii.[protected]@outlook.com
Duplicate Invoice