DMart — Same product billed differently.

Address: 500036

I had gone to DMart Malakpet on 27th January 2016 and bought 6 bottles of Vijaya Flavoured Milk. I was charged 2 different rates for the product having the same batch no 126 and date of manufacture which is 10/1/16. I was charged Rupees 18.80/- for 1 bottle and Rupees 20/- for the remaining 5 bottles. When I complained to the management that I should be charged the discounted price of Rs. 18.80/- for the other remaining 5 bottles as you cant sell the same product at 2 different rates. They said it might be different batch but when I showed it is the same batch still they did not give me discount I am herewith attaching the copy of the bill and await a suitable response from DMart in this regard. I feel cheated. My email id is [protected]@gmail.com