It's apparently a new number for the old $1000 Walmart Gift Voucher scam. The text actually said voucher and not gift card. Searched Walmart Corporate at http://www.walmartstores.com/PrivacySecurity/10852.aspx?p=9534. The page asks you to forward the text to 7726 which is a catch all site for cell providers to process spam. Once forwarded you'll immediately receive a text from your cell provider to enter the phone number that sent the text.