Amazon India — Amazon gave me fake commitment

Requested authority,
I have ordered aqua sure from Amazon on[protected] that was item missing after that I have place a return request, no one is come and pick my product again but it was cancelled I raise a another again cancelled, so I have raise one more request with compliant, in that time Amazon agent aking 3 day for return incase no one come and collect means they will gave a refund but that was fake commitment, now I called to Amazon customer service again they said same story and they ask me to do self courier and worst customer service order ID[protected]