Amazon India — not delivery of ordered product

Address:

New Delhi, Delhi

I have ordered Samsonite bag on[protected] and paid the amount in advance through my bank. delivery date was 25 june to 1st july.
But till 6th july no intimation was there regarding my bag so I send a message to amazon to inquire about my product
on 7th july I recd. a mail and demanding KYC a proof of identification for custom clearance. there was a promise of fast delivery also, after giving this personal information but neither bag nor any other information related to it recd.
on 10th of july again I sent a message to enquire and recd. reply on 11th july where amazon told that KYC is being recd. and product will be delivered within 5 - 7 working days
on 19th july I called amazon about the product they told by Monday (22nd July) you will receive the product.
on 23rd July Tuesday again I call to enquire about the product as no intimation or delivery details updated on the app.
In this conversation they told as product is delayed and they don't have any information where the product is, so we are refunding your amount.
In this whole dealing with amazon I loose my trust for amazon there was only mental trauma for me for more then 1 month, but no support from amazon was there.
I order to amazon I don't know the seller for me amazon cheated me by making false promises to me.
I have a proof of their false promises again and again

They Demanded KYC on 7th July saying the product is at Bombay custom clearance whereas the tracking id no.[protected] showed that the product was delivered from NewYork on 19th July then how should I trust amazon