Discover $100 开卡奖励：
Become a Discover Cardmember and get a $100 Statement Credit when you make your first purchase within three months.
Applies for the specific offer and be approved by December 31, 2022.
Maximum of 5 referees per calendar year （本站这么小众目测达不到）。
Each eligible applicant will receive a $100 Statement Credit after making a purchase within three months of opening a new Discover account.
Existing Discover cardmembers may not be eligible.
Offer may not be combined with any other introductory offer.
自己常用的几个返点高又比较靠谱的Cashback网站的Refer链接：
(有额外注册奖励，不保证是当前注册奖励最高的活动。)
TopCashback
RebatesMe
MrRebates
Rakuten
BeFrugal
无Refer链接：https://www.retailmenot.com/
黑名单：55haitao.