Pizza Hut India — Refund of my order from pizza hut

Address:	411033
Website:	orders.pizzahut.co.in

This is regarding refund of my pizza order placed on 4rd of may, 2016.My name is Nikhil Nirhali.I had placed order under “Any Pan pizza, any day, any size @ RS. 199” offer. I ordered 8 pairs of pizza that means I made order for 16 pizzas. I made online payment through HDFC credit card and payment was successful for 8 pairs(16 pizzas.)I have attached bank statement and bill for the same.
I will walk you through the whole situation which I am facing since last two weeks. I had decided to give treat to my colleagues on 4th of May. So I had ordered 16 pizzas from pizza hut hinjewadi, Pune outlet. I made online payment of Rs. 3256.84 and payment was successful .So until then everything was fine. I was waiting for the delivery guy to get the yummy pizzas. So finally he arrived downstairs of my office and called me to take delivery of my order. So I went to take the pizzas but to my surprise this guy had bought only 1 pair of pizza (i.e 2 pizzas). When I asked him about the other pizzas he said that order was for 1 pair only and handover me the bill, the bill was for one pair of pizza only they have deducted 471 rupees for that pair of pizzas and remaining amount I.e.2785.84 was under 'remaining amount' section on the bill. I have attached bill for your reference.
Hence I didn’t take the delivery of that single pair of pizza and send him back. And this is the reason I am writing this mail to enquire about my money, where is that remaining amount? Bill is showing the remaining amount but how can I get my money back? And its not like that your delivery guy bought 16 pizzas and then I refused to take order, instead he bought only 2 pizzas for the prize of 16 pizzas, how could I have accepted the delivery?
Now its been 22-23 days I am getting the false hope, same lame answers and I am tired of calling the customer support, here they are clearly fooling me (or can I say robbing me), its not the question of 50-10 rupees but my entire 3256.84 rupees are stuck and I am not getting any single reply from their side. Please do the needful and resolve the issue.
Thank you!!