Myntra.com — product missing in delivery package

I had received delivery by myntra on june 26, 2019. Out of three items ordered, i had received delivery of only two items and one item was missing in delivery package. However, myntra is stating that all three items are delivered.
I had lodged the complaint regarding missing item to myntra customer care on the same day. Customer care executives informed me that my complaint will be resolved by june 29, 2019. However, i have not received any reply from myntra on my complaint and my complaint is not resolved yet.
My complaint reference number is in[protected].

I request you to help me in resolving my complaint. I shall get my ordered item immediately or immediate refund of amount against the order.