If you don't have a Nike account (free to create) or Nike + account, you didn't receive the email.
You can also call their customer service email, which most did and say you didn't receive an email. Create the account first, they will check for your email address in their data bank. The "chat" is common in eCommerce now. There's a chat button for customer service, let them know your issue and hope they order a pair for you.
As far as the Grey/Gums are concerned, your best bet is eBay. Those came out over six months ago, don't think many places are sitting on stock. Search eBay until your size pops up.