Swiggy — Food delivery - not delivered as promised

Address:	Bangalore, Karnataka
Website:	SWIGGY

Hi i am manish pandit living in chennai and i had ordered food in swiggy app on 11.06.2017 at 12:37 pm (Order was 2 biryani from aasif biryani restaurant) but did not received my order till 2:32 pm (The order was suppose to be delivered within 37 minutes from order placed)
When contacted the customer care they say they will check and revert on this order but id id not get any call back from them, i tried atleast 5-6 times with their customer support in same manner but no proper respone as they had no clue on what was happening with my order. When i contacted their delivery executive whose details were shared with me through the app even he had no clue on my order, he told me the order was not confirmed by the restaurant. Also the delivery executive was replaced from the earlier one due to non availability of the first person.
This entire process of follow up happened from 1:15pm to 2:32 pm and at last out of frustration had no option but to cancel my order and the only thing i kept hearing fro their customer support person was we are really sorry ofr the delay of your order we will check and get back to you but no call from them at all.
Post cancelling of my order i asked for my refund of my money which they say they will credit in my swiggy account when i refused on that and asked to be paid to me directly in my bank as i had used debit card for this transaction (Hdfc bank debit card no - [protected]), they said it will take 5-7 working days for the same.
First i did not get food which was ordered at all because of their mistake, the food was for my wife and my 7 year old daughter who had to suffer hunger due to their mistake, i had to organise food for them post 2:40 pm learning on the issues by swiggy and cancelling my order.
I would like to sue this swiggy for pathetic service from their end for which they created so much of pain to me and my family.
I am sure this is not the first time a customer has suffered due to poor services of swiggy.
Till now there has been no call from them on this matter and i am sure they will not call as well.