收到 Discover 的邮件，添加一张副卡。然后在 3 月 21 日之前消费一笔，就可以获取 $25 的返现。一个账户只能弄一次 offer. $25 会在 3 个账单周期之内发放。我两张卡都收到这个 offer 了，想必大家收到的也不少。建议查查邮件看，没有邮件的就不要加了，一般都是 target offer
1 Get $25 Cashback Bonus® after you add an Authorized User and make a purchase by 3/21/22. Only purchases made after the Authorized User is added will count towards the offer. In order for a purchase to qualify the transaction date must be before or on the last day of the offer. Offer is limited to one Authorized User $25 Cashback Bonus® promotion per account. Once promotion details are met, cash back will be credited to your account within three billing cycles.
副卡也会上报信用局，信用记录较短的人来说可以帮助建立信用记录。不过要是主卡有没还钱的情况，也会影响副卡的信用记录。
2 Primary account holder is responsible for all charges made by the Authorized User (s) . Discover reports the account credit history to the three major credit bureaus as to you and the Authorized User. This can help build the Authorized User’s credit history if used responsibly. Late payments, delinquencies, or other derogatory activity with your credit card accounts and loans may adversely impact yours and the Authorized User’s ability to build credit.
