www.Paytm.com — Required warranty for 1tb seagate hard drive

Address:	Ahmedabad, Gujarat, 382350
Website:	paytm.com/shop/p/seagate-expansion-falcun-stbx1000301-1-tb-portable-external-hard-disk-black-STOSEAG

I have purchased 1 TB Seagate Hard Drive and it was not detected on my computer and than i tried in different Computer and Laptop too.So i went to Service station and completed registration but service person told me that this product is out of region so warranty is not available for INDIA for particular product.
Service person told me that no one can sell this product in India. So i have required approval letter so i can able to service in our country.
I informed same to PayTM and provided all required document as per they had mentioned in mail.
But after so many days PayTm is not doing anything.
Kindly help me to refund my money or replace the product with India warranty.