Big Bazaar / Futurebazaar / Future Retail / Hometown — Refund of amount in Big Bazaar Profit Club card

Respected SIr/Madam,

I have been struggling to get my refund of Rs.6500 present in my Big Bazaar Profit Club card.
I had sent the email to [protected]@bigbazaar.com In April 2022 and there has been no further refund initiated by them. It was promised to me by customer care over phone call that it would be done in 1 month. In email I had sent all required details (documents) as asked by customer care.
This sounds to me like a big cheating to customers as now their email mailbox are bouncing and customer care number is down.