This is the message i got from AMEX
Dear XXXXXXX,
I have checked your account and see that you were solicited to receive to receive 25,000 Membership Rewards bonus points after spending $1,000.00 within the first 3 months of Cardmembership (offer id 4851).
The points should appear on your statement within 8 to 12 weeks.
I understand that you would like to add offer id 5985 to your account.
According to this offer, you can earn upto 75,000 Membership Rewards bonus points after spending $1,000.00 in the first three months of Cardmembership.
Points are issued 6-8 weeks after the spending requirement is met for the bonus points to be credited
Therefore, I have linked this offer on your Card account. Please remember that two offers cannot be linked on one Card. You can earn maximum of 75,000 bonus points.
I would request you to write to us after you have met the spending of $1,000.00 on your account and we will issue additional 50,000 points for the difference (75,000 - 25,000).
Additionally, you will surely receive 25,000 points associated with the original promotion offer that is linked to your Card account after you make the first purchase.
As per the promotional offer, the 25,000 points associated with this offer will be credited to your account within 8-12 weeks from the date you make the first purchase.
If you do not receive these points within the timeframe, please reply to this email and we will issue the points manually.