Amazon can be utterly useless sometimes.

There are booksellers on AmazonIN who list every single book under the sun, with long lead times, and who never use Amazon for delivery. They will use fake IndiaPost tracking ids (but wrong ZIP codes) to show that the book has been dispatched. You wait like an idiot for four weeks and then complain to CS who then refund your money. The legitimate seller feedback is overshadowed by repeated fake ones from the same 5-6 names.

I have been caught in this trap a few times. And no amount of complaining to CS helps.