My Flower Tree — product delivery not as per promised time

Hi
First experience has been so pathetic.
I booked mid night delivery of a bouquet and a cake to deliver at my wife's place.
The midnight time is 11.30 pm to 12.30 am.
The guy called me around 10.45 to confirm address and i reminded him that it should not be delivered before 11.45 as a request.
The guy still delivered at 11.15 which was earlier than their defined time
And the guy is not even picking up the phone now.
This is very annoying. How arrogant and falsely the service is given.
My order no. Is 422888.

Regards
Tejas