I'm constantly receiving txt msg, regarding on winning on an online draw or an international draw.. For me its a scam, without any identification from a known or registered brand on any country on the what so ever Contest/Lottery will surely tell us that its not a true contest. And if in any case that the person who contact/texted, tod you that you can get the money if and only if you deposit an amount of something to cover the expenses or taxes, IT IS 100% SCAM.. So don't be a fool in any of these things.. If you really won to a lottery or a contest you personally will know for yourself that you have join in a such a thing or someone will contact your personally or send a mail or call you..
Hope this will help..