Amazon refund processed but not received

Hello, like a true dimer. I was all set for prime days with 9 accounts. But with single Bank of India rupay card.
I did all payments from it. Almost like I place 21-22 orders within 2 days.
Some 1600 orders were cancelled, some delivered, some clothes were returned by me, some against damaged pantry products.
I was getting 6-7 small refunds, all refunds have been processed by Amazon and they have shared refund reference ids but I have got only single refund.
5 refunds are missing. Missing total is 2088.
I tried toll free numbers of boi, Twitter, Facebook, email, filled refund claim forums on boi site and later filed grievance form. But still BOI haven’t reverted to any of thses. Had it been some private bank like icici, hdfc, they would have done that on first day itself.
what should I do? any help?