I can't find it eitherAm I missing something but has the quick pay option gone from Apple's web site. There use to be an option under your account settings to turn it on or off and that seems to have gone. I just tried a dummy purchase to see if it would come up and it didn't.
Is this on the web store, or the App? - I can't find it on eitherShould come up when you click buy a product..should be top right hand corner