There is nothing to panic. Just ask the copy of P.O.D. i.e. Proof Of Delivery from the Blazeflash Courier Ltd. If the delivery had been made the Blazeflash Courier Ltd. will provide you the POD. If the delivery has not been made yet, call the respective Blazeflash office and ask them to deliver the consignment immediately. Also call the buyer and ask him not to worry at all. Never lose your buyer and do anything or everything to keep your buyer happy.