D-Mart / Avenue Supermarts — I'm complaining about Dmart employee

Hi, I have experienced several times that, the person who is a sales person in dmart, have saying no change even after giving Rs 100 for one leter milk which costs Rs 48 and he is very rude while speaking and misbehave with us.At the same time he gave Rs 500 change of same product to next customer on frount of me.I ignored him many times, but this time I am complaining you.
And request you to take a strict action or this behaviour spoil the image of Dmart.
Shop Location: Dahisar West, Kandarpada, Near by Radharaman building. MUMBAI. 400068