Last night, I hit "BUY" on a sample on my kindle, by accident. I hit the cancel button immediately twice before it worked. Today, I checked. No kindle book. Good. I checked my receipt. It said Refund at the botton of the order. Good. I checked my Chase credit card. Usually I would see the amount in Pending first, but instead it shows the amount being charged. No Refund is showing. Does anyone know how long this takes? Should I call Kindle CS or my credit card or wait? If wait, how long? Thanks!