Reward description from iCrego.com:
Rebate Minimum : .25%
Rebate Maximum : 5%
Additional Rebates : Earn a 5% cash back BonusŪ in popular categories that change four times a year like home, apparel, and more. Earn a 0.25% rebate at select warehouse clubs and discount stores. Earn up to double cash back BonusŪ at participating Discover Card Partners.
Rebate Details : Earn a 0.25% rebate for up to $1,500 in general spending; 0.5% for over $1,500 up to $3,000; and 1% for over $3,000. Reward is redeemable in $20 increments only.
Expiration : None (Account inactivity for more than 36 months could result in the forfeiture of some or all of the cash back Bonus.)
Yearly Limit : None
Promotional rewards 1 : 5%
Eligible purchases for promo 1 : home, apparel, and more.
Promotional rewards 2 : none
Eligible purchases for promo 2 : none
Promotional period : none
Regular rewards max A :1%
Eligible purchases A : general purchases
Spending limits A1: none
Rewards for spending limits A1: none
Earn a 0.25% rebate for up to $1,500 in general spending; 0.5% for over $1,500 up to $3,000; and 1% for over $3,000. Reward is redeemable in $20 increments only.
Regular rewards max B: 1%
Eligible purchases B : all other purchases
Spending limits B 1: $0 - $1500
Rewards for spending limits B 1: 0.25%
Spending limits B 2: $1501 - $3000
Rewards for spending limits B 2: 0.50%
Spending limits B 3: $3000 -
Rewards for spending limits B 3: 1%