About 3 weeks ago I received this SMS.
RM0.00 Amex:Congrats!Answer this question correctly to win RM100:The corporate colour for Amex is blue, reply Y or N by 21 Jun 12. Enquiries:1800889559. T&C apply.

So I sent the answer. And the received a sms reply "Thank you for your participation. The winners list will be published in the www.americanexpress.com.my website within 2 weeks from now. T&C apply."

But I could not find the winners list. Does anybody know where's the list? Is this a scam?