Swiggy — One ordered grocery item missing... Happening frequently

Address:

Falcon Valley, Shaikpet, Hyderabad. 08

I have ordered 3 litre coocking oil pouches (Safola Total) along with 1kg Atta and few chips packets. When order was delivered one item ( 1 litre coocking oil was missing). I told it to the delivery boy but he suggested to raise complaint. It was second instance when items were missing from my ordered.