false advertising

I went to google to search something and a message popped up saying I had 1prize that i can claim.i clicked on the item i wanted and it asked a question about a iwatch which i answered.got the message thatWelcome: Your WIN iWatch Claim has been activated. *** R7/day.To unsubscribe, sms stop to 39866 Support: ***. AndCongrats! You can WIN now your iWatch. Ur Username is: your private password is: Good Luck.just to get told its for subscription.but it clearly said you won and that i must enter my contact details which it did not allow me as it went to the iwatch nonsense.i want my prize