If you have an American Express card, you should check your email and online accounts. You could be eligible if you missed out on the last round of bonus points.

Amex is giving 5 Membership Reward points for every dollar spent on Amazon.

The Platinum Card from American Express has an offer on it. If you have the same offer, you have to use an enroll card to get the extra points.

AMERICANEXPRESS.COM

The offer is limited to 2,500 Membership Rewards points, so you can earn up to $50 in additional points through this offer.

If you're going to make a few purchases on Amazon for the holidays, this could be a good way to maximize your spending. You will earn 6 points per dollar on up to $500 in spending if you earn 1 point per dollar on Amazon.

Credit cards for Amazon purchases.

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Eligibility can vary from card to card and member to member. If this Amazon offer is available to you, you should check your American Express account to see if it is. If you redeem 1 Membership Reward point, you can get 40% off your next purchase.

It could be a way to take advantage of your earnings on a platform that many of us use every day.

Andrew Kunesh reports additional reporting.