Discover 放大絕，開放所有 Discover it 持卡者接下來一年再疊加一倍 cash back，也就是原有的 5% cash back 都加碼變成 10%，而原有的 1% cash back 都變成 2%；這個優惠需要在 07/31/2015 前打電話或使用 online chat 向客服手動申請。
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After the first twelve consecutive billing cycles that you are enrolled, we will double all the Cashback Bonus rewards you have earned and apply them to your account in the next billing cycle. Enrollment into this promotion will not be finalized until your next billing cycle; any spend you make from today until your next billing cycle will not be eligible for this double Cashback bonus promotion.
You earn rewards on purchases you make that have posted to your account by the end of the 12th consecutive billing cycle. You will not receive Double Cashback if your account is closed or no longer in the Cashback reward program as of the award date.
This fantastic offer will activate on the next billing cycle! Your Double Cashback Bonus will post by the 13th billing cycle following your enrollment!