Look for an email from Discover or go to your account to activate 5% cash back
from Discover [discover.com] Card
Here's a quick look at the upcoming 5% Calendar:
: Gas Stations & Wholesale Clubs
: Grocery Stores
: Amazon.com & Wholesale Clubs
Earn 5% Cashback Bonus on up to $1,500 in category purchases each quarter, when you activate. For now, customer allowed to activate the offer for the Quarter'1 2018.