Update: It looks like you can get the bonus on both of these cards. Lantean as able to recently. Let us know your personal experiences in the comments.
Hi, I’m wondering if it’s possible to get the sign up bonus on the American Express Platinum & Mercedes Benz Platinum cards?
First of all it’s important to note that these are both personal American Express credit cards. You can only get the sign up bonus on each personal American Express credit card once per lifetime (whereas other credit cards are churnable).
In some cases American Express will consider two products the same, meaning you can only one of those bonuses per lifetime. This is always clearly spelled out in the terms & conditions.
Terms for both cards:
Welcome bonus offer not available to applicants who have or have had a Platinum Card® account enrolled in the Membership Rewards® program
Because they are both technically Platinum cards, you would not be eligible. The second part of Peter’s question was:
Is this actually enforced?
All of the data points I was able to find suggest that this rule is actually enforced. Because American Express personal sign up bonuses are now once per lifetime it’s really worth waiting until an exceptional offer comes along before signing up.
People have received bonuses of 100,000-150,000 membership rewards points on the Platinum card. I wouldn’t apply for it until I received one of those offers. You can check for those offers here. I hope that answers your question. If anybody else has a question, let me know and i’ll do my best to answer it either by e-mail on through a dedicated blog post such as this.