I also received this exact message at 3:30 am on 3/20/2012. Found out this scam is quite popular. http://www.scambook.com/group/reports/1051/PromoCenter.ws-Walmart-Text-Spam
Wiggy
2012-03-20 02:01:52
Unknown
Caller texted you won a free $1,000 Walmart Gift card, enter'1000" at http://promocenter.ws/walmart. 7:46p.m. Mon., Mar. 19, 2012 from 1 (702)317-7614. Probably bogus.
