Please come back and tell us the outcome.

Just remember that you actually have to ask eBay to step in if the seller does not respond to the case.

Someone recently had their case closed just because they thought it would be automatic. It is not automatic (I think it is with PayPal, but not with eBay). Read eBay's email after you open a case and note when they say they can step in if the seller does not reply, but remember that you have to *ask* them to step in...

Oh thanks for letting me know I will remember that for sure 

Yeah will do 

If it does turn up, make sure everything works and is in proper order before you rush to repay.

As I say, you will have no recourse if a problem develops, so best to test the system as much as you can.

Yes, particularly considering the seller bought the item in September of last year for shipment in 2021, and after waiting so long he wants to sell it after just a week. There could be many reasons of course, but it is certainly better to check everything is fine before paying the seller again in case the item arrives.

The estimated delivery date has always been a 'best case guess' inserted by eBay based on Australia Post's estimates 

No, it is not accurate, but they have recently extended it so that people don't open a case too soon.

https://www.ebay.com.au/help/buying/shipping-delivery/delivery-date-options-buyers?id=4025

Do you live far from the seller?

It still remains - the parcel would have tracking.

There is none - it hasn't arrived - put in the INR.