Amazon — Return and subsequent refund for an item ordered recently

Website:

amazon.in

Ordered the following item ORDER PLACED 17 April 2023 TOTAL 6, 550.00
ORDER #[protected], this was delivered on Apr 21 and I found some parts missing so I initiated a return. Pick up was scheduled for 27 th April which was not EXECUTED by Amazon. Subsequently spoke to customer service etc. and raised another return request which was scheduled for May 4th which was also not executed. Today when I tried to process another request the system would not allow me to do so as the time window was over! Clear case of cheating and stalling to ensure the return and refund does not happen. Kindly help.. thanks