AmEx Platinum 信用卡有多个版本，现在还能申请的主要有以下3种：
以前这几个版本的开卡奖励互相独立，可以把每个版本开个遍同时把开卡奖励都拿到。
今天（2023/08/17）开始，AmEx 更改了条款，现在各个版本的白金卡开始互相影响开卡奖励了。以普通版白金卡为例，现在它的开卡奖励限制条款是这样的：
You may not be eligible to receive a welcome offer if you have or have had this Card, the Platinum Card® from American Express Exclusively for Charles Schwab, the Platinum Card® from American Express Exclusively for Morgan Stanley or previous versions of these Cards. You also may not be eligible to receive a welcome offer based on various factors, such as your history with credit card balance transfers, your history as an American Express Card Member, the number of credit cards that you have opened and closed and other factors. If you are not eligible for a welcome offer, we will notify you prior to processing your application so you have the option to withdraw your application.
意思是如果开过任何一个版本的白金卡，那么就不能拿普通白金卡的开卡奖励了。其他版本的白金卡也是同理。所以以后各个版本的白金卡之间需要选择其一来拿开卡奖励了，三个版本当中往往普通版白金卡是奖励最高的。其他版本的如果有需要可以开，只是拿不到开卡奖励了。
于此同时今天AmEx还把各个版本的白金卡开卡奖励给降低成80k了。
HT: 美卡论坛 YCJHUO。