Asus India — 1TB HDD not received even after 90 days

I availed of asus promo offer at the end of may 2020. Out of the goodies that i opted for, i am yet to receive the 1tb hdd that was promised and i paid for even after more than 100 days now.
The customer care is pathetic. No one ever picks up calls on the customer care number. And no one even responds to emails.
Please resolve this issue soon.