Big Bazaar / Futurebazaar / Future Retail / Hometown — Refund for BBPC Card

Address:

Prayagraj

I was offered a BBPC at Prayagraj Store in the month of Feb 22 without disclosing the tentative closure of the store permanently which was in pipeline and the store staff knew about it.
Since then I could not use my card and my card balance is stuck with Big Bazaar.
Have written them emails and tried there customer care number but haven't received any reply.
Please, refund my balance, I don't want to bea customer of such a fraud company.