Non delivery

I have placed an order on July 8th and my delivery was supposed to take place on July 16th. I have not received my order and when I called customer care they **** and told me I would receive my order by Monday July 19. This was part of my kids eid clothes and I am furious that I now have to find alternatives for them. I have spent so much money with you guys online and Instore and this is the treatment I get. I would have atleast appreciated a notification telling me my order would be delayed by another week. This is unacceptable. What am I supposed to do now, as a working mother with 3 kids to sort out.