State Bank Of India [SBI] — refund not processed by the bank

Address: Jamtara, Jharkhand, 713301

Sir i m raja chartered. My account no. Is [protected]. I have a refund transaction with amazon... Which the amazon emailed me on 27.08.17.. That the refund had been initiated and will be updated in my bank account by 3-5 businesses days. I called for the amazon customer service they ensured that the refund had been initiated by them on 27th august itself they mailed me the refund reference no. That is[protected]. Sir please let me know why bank is delaying in transferring my refund in my account.