Floraindia.com — Order delivered to other reciepient next day

I booked an order for 14th Feb for Kolkata.
But, the order was not delivered on 14th. and on 15th Feb noon time, i recvd mail that the order was delivered.
On 15th Feb 8.30 pm the delivery man came delivered the order to address, to the neighbor without confirming that the person is present or not.
Recipient left the city on same very day noon time. They claim that order is delivered. and we can not do anything.