Reliance Mart — Regarding cash back offers and credit card charges

Dear sir/Mam
We choose to purchase all Ration items from Reliance Smart point near Bhattakuffar in Shimla. However this time we were not briefed about any offers or cashback points to be redeemed by us..Neither the reliance phone number was provided thru which we could have redeemed our points of last purchase citing reasons "ki woh company ne band kar diya hai"
Moreover, the charges of Credit Card of Rs. 89 was charged from us, being the consumer, which is not in best interest of the company..
Reliance is well known name in the country, but it seems that it will soon loose it's reputations in Shimla particularly the Reliance smart point. The response of the staff was cold and on asking about cashback offers redemption of points no satisfactory answer was given.
I hope I will receive a satisfactory answer from your organisation and the extra money charged on payment through credit card