State Bank Of India [SBI] — did not received refund for this failed transaction

Address: Kolkata, West Bengal, 700137

I used sbi anywhere android app's mvisa facility to pay for irctc using qr code.in this process the money got deducted from my account but transaction was failed.

The transaction of rs 295.885 was tried by me on 30th may 2017 with mvisa
Qr payment ref. No: 715011a00013
Transaction ref: transfer to[protected]

I did not received refund for this failed transaction.
I called customer care to lodge complain on this issue.
They told me that they can not help me due to technical issue and contact home branch.
I also visited my home branch. They told me that they can not help me on refund of any online transaction.
Please look into it as three months passed and i still to get my refund money.