Amazon India — Amazon delivery agent Ramanathapuram Hub

Address: Ramanathapuram

I have ordered a mobile on amazon by applying for exchange offer. It is not mentioned anywhere on amazon that mobile original box is required for exchange.
I called Amazon team, and they confirmed original box is not required for exchange. However, the delivery agent told mobile box is mandatory and he cancelled the order by himself but the reason he stated is customer rejected the order. This is straight forward cheating from amazon. If they can’t accept mobile exchange without box they need to mention same reason and not item rejected by customer.

I ordered 3 times, all the three times amazon representative told it will be collected but at the end they cancelled the call and cancel the order by themselves.

I wasted 3 weeks in this process and I need to raise a complaint on the delivery hub manager and I need to know the action taken on him to avoid such indecent behavior in future.