Reliance Fresh — Complement price for sugar not informed properly and denied to supply

Address:

607803

I was purchasing groceries at trichy reliance fresh shop around rs.6300 on 17.11.2016. That day you are given price offer for sugar (Rs. 9 only for every 1000 rs purchase. And one kg free for horlicks). Without knowing i purchased 2 packs of horlicks and 2 kg of sugar and more items. At the time of billing the billing asst. Informing me one pack horlicks have a free of 1 kg sugar, so they are not billing for my 2 kg sugar. But she is not informing the offer is also available for 1 kg sugar is only rs.9 for every 1000 rs purchase.
We are heard the offer from neighbors, we went back to shop at the same day evening, we are explain to the shop rep, we are eligible to get 6 kg of sugar in the offer price, we are showing the bill and all, but, she was denied to provide the offer. What can i do. Transaction id:[protected], 17.11.2016, 14:47:01 pm
Regards
Kumarans
[protected]@yahoo.com