Big Bazaar / Futurebazaar / Future Retail / Hometown — future pay card refund

Address: VILL-SALHA, POST-JALALPUR, VIA-SILOUT, P.S-MUSHARI, Muzaffarpur, Bihar, 843119

Sir
I was forged by your agent for selling the future pay card @muzaffarpur, bihar by saying that i can purchase amount of12000 by investment of 10000 once, i did that but when i purchased i got to know it's monthly 1000 deduction.
I was so angry with your agent then he said cancel the card and get the refund.
As nobody carries their cheque book with him and for cancellation of card they need cancelled cheque so i went on 1 nov due the diwali i couldn't go early.
They forced me to use that 1000 balance before cancellation i did that then he got my card and cancelled cheque but didn't give me any receipt.
Today it's 2 december but i have not received my 8000 rs till now tell me what should i do.
My mobile no is [protected] by which the card was made.
Kindly do this urgently otherwise you will face the consequences.