Medplus India — Online order not delivered

Placed online order for 1300 Rs. including an hand sanitizer.
The order was split as two. The others were delivered but handsanitizer which was in a separate bill was not delivered.
The guy doing delivery took both the otps from my parents since the order was for them.

I escalated the issue to medplus but they keep saying order status is delivered.I again told them the guy making delivering took two otps but gave only one parcel and since we made a single payment, we were not aware the order was split into two deifferent invoice.

No response from them after that.