Swiggy — refund of amount against order no. [protected]/ [protected] (cancelled by swiggy)

1. On 04.12.2019 at around 2.40 PM, I ordered a Black Forest Cake On Swiggy vide Order No. [protected]. (The cake was to be delivered from Mitthan Sweet Shop (Tehsil Camp), Panipat. I made pre-payment and paid Rs. 165 for booking the order from my PayTM wallet, after offered discount etc. by Swiggy. Got confirmation sms also from Swiggy at 2-45 Pm also that order shall reach in 39 minutes.
2. But, on checking the delivered item it was found not to be a Black Forest Cake, but vanilla cake, so I checked with the support options on the app. Since I needed to buy the Cake so only had booked the Order, when I found option of replacement I went for that which was accepted. I got confirmation of Replacement Order No. [protected] by Swiggy at 3.35 PM apologizing and that the replaced item is on way.
3. However, to my surprise and also of the delivery person that item delivered was again not a Black Forest Cake, but some vanilla cake, which the delivery person accepted. I raised the issue and the same was recommended by the delivery person and finally I was informed by support executive on call that the order will be cancelled and I will be refunded the amount. I may then order from else restaurant. I agreed to the same. The delivery person left with both the cakes. I got sms at 4-33 PM that my order No. [protected] has been cancelled.
4. But to my shock, when I was checking about the refund on the app, I got call from some support executive of Swiggy that against refund money they have issued me some food coupen of Rs. 150/-, when I asked about its being less than my refund amount and usage. He said we are also adding another coupen of Rs. 25/- and you can use the coupens as per your choice.
5. However, when I tried using the coupens they can not be used as I can utilize my money for availing benefits/discount/offers, if any available in my nearby. Therefore, those coupens are literally of no use to me, and not at all the refund of money.
6. I immediately tried options on Swiggy app, carried on conversation with different executives, like some Magha, Bakhim etc. (details available in my account linked to Mobile No. [protected]), but with the replies that your order was COD, we have compensated you, rewarded already, this is our policy, nothing else is available.
7. I want to clarify, I only need to be refunded my Rs 165/-, the way I can use my money, not the restricted food coupens of Swiggy. I will not be looking for any rewards from Swiggy but only money I paid for an order, which Swiggy could not deliver and cancelled to its own accord.
8. I wasted 4-5 hours in this bad taste episode with Swiggy, then I had to go market and buy the Cake from Some shop and now also putting in whole of it for some resolution with the hope that Customer Grievance Redressal Mechanism, if any, at Swiggy gets activated and do the needful.
9. It’s so tormenting to keep on trying some positive solution for something which is not your fault. I may be given the refund of my due amount
10. took up matter with their customer support e-mail many a times...but same standard reply. no resolution