Amazon India — Refund for Order Id:[protected]

Sir/Madam,
Sub: Refund for Order Id:[protected]
I placed an order for two pairs o[censored]rjo sandals, size 10, costing Rs. 709/- each, with Amazon India on 07th april22, POD( pay on delivery).
When I received the order one of the item was size 9, so l immediately asked for a return of the undersized item. But the delivery guy failed to pick up the item on the given date, so I called up customer service demanding that the item be taken back and issue me the refund to my bank account (I have two atm cards registered with Amazon). Finally, the item was picked up on 16th April and approved (email by Sakshi, customer service).
Now, more than half a month and numerous calls to customer service my refund of rs 709/- is held up by Amazon India without giving me any valid reason.
Approaching the consumer court was my last and only option, therefore, I beg you to kindly look into my greviance.
Thanking you,
Rui Jorge