State Bank Of India [SBI] — refund has been hang

I ordered a hp laptop bag from Amazon.paid it at the amount of 354.and then I cancelled it that moment for some reason.Amazon sent me an e mail and I also did contact there they have provided me a reference no[protected] and telling that the refund was initiated that day as the money till has not been credited to my acount this is why to contact here and this way the payment can back to them.I request you please take this matter seriously and help.