Reliance Fresh — emotional and mental trauma

Address:

Visakhapatnam, Andhra Pradesh

i have bought in excess of 400 rupees in item at your store on 11/10/2012 and was held up at the door and treated like a shoplifter upon exit because an item didn't not appear on my bill.
A 30 rupees item didn't appear on my 497rupees bill..does that make me a shoplifter, then y was i treated like one, clear there was an error made by the cashier, i was so offended and you wasted my time and ruined my evening.
I wonder if i will be compensated for this mental trauma, not even an apology.
i need clarification and compensation, this is reckless for such a huge firm.
this is the store address located on saviji road, near saviji park. visakhapatnam