Mailings from overseas promoting lotteries or 'get rich quick schemes' are more often than not misleading and fraudulent.
Our advice is not to reply and to put it straight in your recycling bin.
It’s a difficult problem to solve but the Office of Fair Trading is working on it, you may like to send any copies you receive, including the envelope, to the European Enforcement Team at the Office of Fair Trading at Fleetbank House, 2-6 Salisbury Square, London EC4Y 8IJ.