State Bank Of India [SBI] — Sbi came find transaction details by references number of neft

Address: Rajkot, Gujarat, 360004

I bought a cell phone from amazon. Con was having fake imei number so i contact the company they told the phone doesn't belong to them so am a returned that a d refund amount of 2000 to my bank account and provide me a reference number. And i contact branch when the amount in my account they told to contact customer care they can't be able to find that reference number