State Bank Of India [SBI] — refund not received from the banks side

Hello sir/mam

My state bank of india account number is [protected].
I had placed an order on reliancetrends.com of about 2698 rs. On 25th june. For some clothes.

Out of which two products were cancelled so i was supposed to receive 800 rs as refund from reliancetrends.com

Reliancetrends.com customer care gave me the reference number for the refund they have done from their side is
Nsbi[protected] and nsbi[protected]

On contacting state bank of india customer care they are asking to visit home branch which is in gaya, bihar and i am in bangalore.

It has been 2 months and 15 days and i have not yet received any refund from sbi bank.
Please help me with the refund.