Swiggy — Harassment by swiggy, Many items were missing from order

Address: Hyderabad, Telangana

Order Number[protected]
Date- 27 August 2022.

Unfortunately, I ordered food from swiggy delivery Application. This was my first order from swiggy (and last too).
When food was delivered I found that HALF of the items were missing from the actual order (it is not about 1 item missing from the order).
When I asked Delivery boy, he suggested to call customer care, and said that his responsibility is only picking and delivering the food.
So, from that point onwards I was just following up with swiggy customer care call center for 1 hour, instead of enjoying my food.
I submitted the complaint in swiggy app and uploaded the picture of delivered items.
Later, I called customer care and following are the points customer care executive has discussed and suggested to me-

-She asked me that why haven't I mentioned all the missing items in submitted complaint, and she suggested to open the same service complaint and provide details of all missing food items. I told her that I am calling to explain all the details. But she insisted to update the detail in already submitted complaint.
-Application did not allow to update the missing items, as service complaint was closed.
-She suggested to open a new complaint again. But application did not allow to open to new complaint ticket for same delivery.
-Then She replied that SHE IS VERY SORRY and they can't do much in this case, and they will give Rs. 400 coupon for all the inconvenience and harassment (Though total value of missing items was Rs. 500+)
-I requested her to call the restaurant to check if they can deliver the missing items. She put my call on hold for 5 seconds (To pretend that she called restaurant) and replied that Restaurant is not picking the call.
-She was continuously saying SORRY, which was irritating. (What is the meaning of sorry when you don't mean it.)

My first point, These service delivery companies should realize that We order food for some occasion and expect the food should be delivered as ordered, and not to follow up with them and get some coupons. (They just say sorry and give some coupon).
Second point I would like to add about coupons, after having third rated service experience from a company, why would you use the service from same company again. But they are smart, they give you coupon to do that and get harassed again. WE ORDER FROM ONLINE APPs TO GET FOOD AND NOT THE COUPONS.
Third point, swiggy charges money in every item and not for single order (example- if 1 item cost is Rs. 250 in restaurant, they charge around Rs. 300), so it is their responsibility to make sure that they are delivering all the items. How can they take money for the item that is not delivered?

This complaint is not to get money refunded, but to set the accountability of service delivery companies (If possible):-

Swiggy should be verifying the items while picking up from restaurant,
swiggy delivery executive should verify the items during Delivery, like big basket and other companies do, and get the confirmation from customer.
Swiggy is a service company and that is what they should be doing. They cannot just blame the restaurant, rather than taking the accountability. They are charging money for each and every item in an order, so they are also accountable.