No-one is going to hurry a refund - it isn't their top priority. If they have acknowledged that the order has been cancelled they will process it - but it could easilt take them a couple of weeks to get the payment back to you.
Bear in mind that you are the one who has messed them about by ordering, then changing your mind.
I've dealt with Amazon for years. They don't have anything to do with the transaction. You must consult the vendor who sold it to you.
Oh for God's sake, cool your jets. It takes several business days to process a refund.
That is why I never go into the Amazon. It is filled with snakes and other nasty insects and the women are over 7 feet tall and they carry weapons.
when you have a credit issued back to your credit card it will definitely take a lot longer to process than when you purchased it
if Amazon issued you a credit that was transmitted to your credit card, make sure you keep that notice to compare with your credit card statement when you get it
are you aware of how credit cards work
are you aware it takes up to 2-3 BUSINESS days for refunds to work
are you a 5 year old