Big Bazaar / Futurebazaar / Future Retail / Hometown — Non refund of Balance BBPC membership amount

This is Hemanth kumar BL, a loyal customer of big bazar. Purchased BBPC MEMBERSHIP [protected] on 18_9_2021 and having total unused balance of 7238.80 as on date. Have already written to [protected]@bigbazar for refund of the same several times but got no response. However with the present conditions since BB stores are closed, also their customer care and emails are not working. I am writing in this forum to seek solution.
Since I used a credit card for payment same path might be usefull for refund.
Also I have SBI fbb card and unused points of over 6000. same can be adjusted to balance payment .