Nykaa.com — ordered 4 items but only 3 has come.

My order no #[protected].in 9 th may i have order 4 different items in nykaa, a nivea shower gel, a pantene oil replacement, a biotique hair oil and an elle 18 color pop matte lipstick. The order was a cod and i have paid 489 for all 4 items. But in the box i have received only 3 items. The elle 18 color pop matte lipstick pink kiss is missing which is of 100 rupees. Now i just want the refund or the item. Please resolve my problem.