Amazon India — customer support irresponsible answers and delivery boy

Address:

Mallikarjunapet near vasantharayapuram, Guntur, Andhra Pradesh, 522002

I had made a purchase on march 23rd 2019.On 28th march i had got a message your order will be delivered on today.but after some time i had checked my order status that your order is refused at delivery address.But no amazon delivery boy has came there and even not called me how can they cancel the delivery without proper guideness...worst service...