Becareful when you get the sms from suspicious number as they is no such thing that you won $9000. My friend got an sms saying that he needs to call the cell phone number then also give the pin number which attached to the sms.
It is not an easy contest in Power Root which is an offline contest, I knew because I taken part and I not win. They will call you by phone and not send sms telling you to call them. Unless you are taking part in magazine contest they will send sms to you to inform.