Online Shopping Pvt. Ltd — Fraud prize money letter

Address:

dona tower, 4th floor, c block, near dona planet , G5 Road, Ananda Nagar , Guwahati , Assam-781005

Hi i have received a letter from online shopping company pvt. ltd. stating that i have win a prize amt of 120000 rs and a scratch card of 430000 rs. this a fraud letter with seal of AMAZON .
I have mention this complain as AMAZON reputation is at stack. plz take appropriate action regard the same