Reliance Market — overcharges and about behaviour of the billing staffs.

My name is kesavan. I am purchasing goods on every month from reliencemart for 4 years. On purchasing on 29/09/18, they are charging 6rs for a small with is insufficient to carry goods. I had a hard time carrying goods on that cover. Change the rate or the cover size. The billing person demanding to arrange all the stuff by me or else they won't bill the products. What type of behavior is this? Then why are advertising customer first? If your staffs are behaving like this.
Purchased date: 29/09/2018
Billing time: 13:58:10
Cashier number: 60435860
Store number: 3235
Pos no: r004
Survey field number: 1314/1
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