Got from  other bbs:

If you have Citi credit card and in their thank you network, you can get 200 more free points.

Login to their site here:
https://www.thankyou.com/promotionalCodePage.jspx

Enter DPR1CDW408WK as promotion code, it will add 100 points to your account.
Enter CITICCI508IN for another 100 points.

Note 1: it may give you error, but the points are added anyway. Check your point balance before and after it.
Note 2: if you are not a member, u can register it. It is free (at least for me), and it accumulate points each month automatically (you do nothing).
Note 3: currently, 3500 points worth a 25$ Amazon gift certificates (I like this one). For girls, normally 1500 points worth a 10$ card for Gap, bath work, etc.

Please post if it works or does not work for you. I worked for me.

[此贴子已经被作者于2008-6-1 1:22:13编辑过]

It worked for me. Thanks!