Amazon India — Replacement order was cancelled automatically without any confirmation or call

I have ordered OnePlus Nord 3 on 18 June 2024 at 19999 that is delivered on 20 June. After a day I saw a minor gap between display and frame of phone (check out the picture below) and raised complaint for replacement on 21 June. I got replacement on 25 June that is to be delivered between 7am to 10 pm.
On 25 June, I waited for delivery, but I didn't get any call from delivery boy till 7 pm and then I talked 3-4 times to amazon agent on 25 June regarding my replacement order and they said that sir your order delivered before 10pm.
And they even didn't provide delivery boy contact number after asking 3-4 times.
At last, I have talked agent at 9:34 pm on 25 June and he said that delivery boy is proceeding to your location in 10 minutes but after that my order was cancelled without any confirmation.
Note: - I didn't get any call from delivery boy on 25 June.
After cancelling replacement I talked to amazon agent on 25 June, they said that we can only return your order and I told them to okay return it.
Now the phone is out of stock, and they wasted my time a lot.