Rajshivalay Cinema Anand — more charges of water bottle.

Respected sir, i went to watch movie in rajshivalay cinema, anand on 1st march 2018.in the cinema canteen i purchase water bottle of 1 litre of aquafina and they charge me rs. 50 for the same.
When i argue regarding this then then show me mrp on the bottle.
And the give me bill of rs. 50.
So sir, kindly do something in this matter.
I am sending you bill of this.
My email address is [protected]@gmail.com & contact number is [protected]