Non delivery of order, false delivery confirmation

We ordered our bosses day gift from Netflorist for delivery on Friday 16 October 2015. at 13:58 I received a confirmation of delivery email. I immediately contacted the call center as the item has not been delivered, I was advised that there was a \technical error"and that our package was still with driver and on its way. I informed the call center that our offices closed at 4pm and to please and ensure delivery before then. 4pm came around and still nothing. I finally got a phone call at around 4:30 saying the driver has just left our offices as there seems to be no one there. The previous call center representative had failed to advise the driver of our closing times"