United Bank Of India [UBI] — couldn't get any refund in my bank account

Address:

Vill-Chapra, P.O-bangaljhi, P.S- Chapra, Dist- Nadia, Pin- 741123, 741123

I didn't recieve any refund in my bank account
Bank account number[protected]
My name - ayandeep saha
Reg. Mob no - [protected]
I recharge my phone 20th sep by freecharge with my rupay debit card. But the transaction was failed. Rs-349
Transaction id - fcva[protected].
On 29sep i buy an product from amazon and 11oct i return this product. But the same thing done. I didn't recieve the refund. Total amount 2298
Refund rrfno - 0r9x0lo90000k0ocpjsi
Provide by amazon customer service
Now what am i do?
One more transition from freecharge rs 20 on 16th oct and i didn't get my refund.
All transactions i do with my rupay debit card