Myntra.com - Product undelivered but company claims to be delivered

On the *rd of March, I ordered * items from Myntra. On *th, two shoes and two shirts were scheduled to be delivered. I got two shoes on *th March but I haven't yet got the shirts but the Myntra showing that the shirts are delivered. (Order No: *******-*******-*******) I have raised the complaint to the customer care but no one is taking it seriously. *st one customer service associate said that action will be taken in * working days and after * working days when I called them, they are saying that please give more ** hours excluding Saturdays and Sundays. Now they said that the complaint has been declined. What an unprofessional behaviour is this. On the day of delivery, I got a message stating that I'll get * products. However I got only shoes no shirts, I first called the delivery guy, he said that he had the only * package that he delivered and asked me to call Myntra customer care. I did the same but they are not accepting their fault. I have a video camera fit into my PG. Any delivery would not be hidden, hence I requested the customer care executive to re-raise a complaint and this time send a person to mine PG for cctv verification.