Reebok India — Refund missing from more than 6 months now

Address:

Plot No-53, Sector-32, Institute Area, Gurugram, Haryana 122001

I purchased couple of products from Reebok India and returned some of them however I have not received the complete refund yet. I raised multiple complaints over calls & email both but no one is responding over my complaints.
I shared my Credit card statements too with Reebok to proof that refund is missing but still no response.
My refund is missing and the same has not yet been settled by Reebok. It's already been 6 months now and I am still struggling to get my refund.

Not sure what else they guys are looking for, as nothing much proof I could provide them apart from my Bank/Credit card statement to show that refund is missing.