State Bank Of India [SBI] — Void sale money not credited back to account

Address:

411015

Due to discrepancy in the billing amount, the person at the counter at Surya Child and Mother Care hospital, Pune had done Void sale transection for Rs.4824 on 17 Jan 2017. But the amount still not credited back into my account even after 1 week... The accountant at the hospital has refused any further help saying that the money has not been credited into their account. Kindly refund my money at the earliest...