Complaint regarding non-delivery of mobile by courier

I ordered a few mobiles on the 10th and the delivery date was 15th October, due to the urgent meeting I did not receive the delivery boy’s call but since some time I have been continuously calling the delivery boy or customer care. But my issue has not been resolved yet since the product should be out for delivery in 4 days. It’s been 10 days since I made the payment. I have wasted a lot of time or money. I need compensation or discount on product. Because since that day I have suffered mentally or financially.