Amazon India — Missing product in package

My order with number[protected] i ordered 3 quantity but received only two quantity... But i paid for 3 items. The package was closed with tape on it... My items was missing in that i request u to either send me items or refund. I am attaching the label of packages with cover where it's clearly mentioned that both product contained single quantity... It's openly mentioned on packages. But amazon specialists team saying they can't refund or send me product... It's totally unfair with me. They are not ready to listen. It's customer exploitation and unfair practices by amazon...