Who called from 5712498681

You have just won a $1000 Walmart Gift Card! To claimenter WINN at
http://dealdaily.ws/wm

I got a text message.  I didn't read it.

I got the same text message: http://theipad3.mobi and enter code B. I asked for a confirmation, and the reply was:Receive it! The next day, I got a text telling me I won a $1,000.00 Walmart gift card.To claim, enter WINN at http://dealdaily.ws/wm.The kicker is that the reply telephone number is the same as the ipad3 text. What do I do?