Complete utter disappointment

I ordered a gift off netflorist on the 4th of May. I was told this gift would be delivered on the 8th of May. 8th of may came, no gift. I called to find out what the problem was, and was told one of the items was out of stock. We replaced the item with something else. I was garanteed 100% that my gift would be delivered on the 9th of may. 9th of May no gift. The product can only be delivered the 12th. This is unprofessional, unacceptable and pathetic. Why was I allowed to buy the gift to which I paid +-R600 if there's no stock and it can't be delivered the day it was meant to be!