Reliance Smart Bazaar - Worst Behaviour of Manager at Smart Bazaar Bargur branch

I made purchase of three soft drinks varieties named *up, Mirinda and Pepsi. Each varieties consists of ** bottles(total of ** bottles). Before purchasing I asked the price details of each variety at the billing section and the attender. Both of them said each bottle costs ** rupees. So I made a purchase and paid the bill amount. After that I cross checked the bill, but in the bill each bottle costs ** rupees(which is different from what they said). After some time a staff named VINAYAGAM politely explained the solution to sort out these things. But at the end the branch manager came and raise voice against me, stating that it's my( customer), so you have to be responsible and use some harsh high pitch tone and some harsh words against me and asked me to leave the shop. I have the right to question about the mistake that they done. But the manager said it's your mistake, so don't be in the shop and get out. Is this a fair thing. I'm a regular customer to smart Bazaar located in Chennai, but in Bargur u have appointed the worst manager and his behaviour is very very worst. Please ask him to handle the customers politely.

Added that he use some local language(Tamil)to threaten me.
Let me say what he said in Tamil(illa unnaku Vera maari pesanum naalum pesalam).

I have the bill copy and I know the working staff members who said that each bottle costs ** rupees.

So please do take necessary step.

Thanks and Regards
Praveen