Reliance Mart — Fraud practice observed

Address:

Flat no 2,plot no 66, Sashtri nagar,khopoli 410303

I had been to shop some items at the newely opened store in our town khopoli,
On approaching the billing desk for payment, the person at billing desk asked me to call a number so as to get discount, on calling the number I had received an SMS stating that amount of Rs 8007.00 had been debited and the sender of the SMS was Reliance one.
Actual bill of mine was around 1018 Rs and that too I paid in cash.
I have also reported same in writting at the store feedback book and if these amount debited from my account then it will be a Fraud from Reliance.