I have lots of emails addresses. I use gmail. One for contests, one for all online purchases, one for forums and community boards and newsletters. One for personal use for family and one for guild members to contact me. I have them all set to be sent to one email address so I don't have to check each one. I can tell by the address which ones I need to read first or check right away. I don't give my correct phone number for contests. An email will be sent if the number is wrong asking you to contact who ever. And the contests that ask for phone number are the ones one that will have sponsors contact you trying to sell something. They don't need the phone number to let you know you won.