Amazon India — amazon refund didn't get

I ordered on 20th jan 2019 and cancelled nearest day. Mobile headset is refund initiated on 22nd jan and powerbank is refund initiated on 30th jan. Headset is 199rs and powerbank 499rs. Yesterday (2nd feb 2019) i checked my order, then i could see headset status is"return received" and powerbank is "dispatched". I asked amazon customer care they said already refund to my bank account and gave a reference no. I went to bank and they said there are no transactions from amazon and no pending. But i didn't get any refund from amazon side. Please submit my complaint and solve my refund problem.
My order id:[protected]