Inox Leisure / Inoxmovies.com — Change not given

I was standing in a Q to buy a samosa one person came and he said u place a order and will deliver order to the seat. We gave him 200rs later on he came and gave the order he said he was not knowing the name so he asked my name and he said he will bring bill with change later he came and gave only 20rs but he was supposed to give 70rs as it was very dark we couldn't check the amt he gave during the movie. In the bill his name is mentioned as kumaraswamy. Bill name is Arpitha