State Bank Of India [SBI] — non credit of refund acc no. [protected]

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Sbi

I have to get refund for the amount of Rs 9899 form amezon on cancelled order. The have refunded the amount on 11 Aug 2018 vide Refund Reference number 915219. On contacting the home branch HAL Township Ojhar Nasik
IFC code SBIN 0001196 the have conveyed that notransaction is pending agaist my account. Also I have email my complaint on [protected]@sbi.co.in on 07 Sep. The bank has neither respondednor nor the amount is credited.
The amount is not transered /creditedtill date. My debit card number is [protected]. My email id is [protected]@gmail.com