Maximum 45 days are there for opening any kind of Dispute.
Still there is one chance. u can open a Cyber case again the seller in US or India. and Send them Notice Under Section (2)f. Still I will find the corrct pinal code and let u know.
what is the amount, which u paid ? and also u can have to check it with ur local post. cause some time they have parcels, but they dont update or send letters to the buyer. so first contact there.
Kind Regards,
Pastiwala.