Spam text. Shoppers make 100/day

2 messages
"You have been chose to receive a $100 Cash Rebate Card! To find out more call toll free 855-220-1127 TXT STOP TO STOP"

"You have been chose to receive a $200 Gas Card! To find out more call toll free 877-695-1619 TXT STOP TO STOP"

I'm noting 2 texts because they both occured right after I visited and purchased an item from Walmart.com.

2/2 received text from 708 543 9636:
"Congratulations! As a thank you for visiting our website. You are eligible for a $50 Wal-Mart Gift Card. Call 877 825 3540. Reply STOP to end."
2/1 received text from 7862822690:
"We want to thank you Call us at 877 803 9548 For your 50 Dollar Gift Card Gift ID 905 Txt Stop to Unsub"

2/10/2011 Shoppers: Make $100/ day! Undercover shoppers needed to judge retail & dining establishments! No experience required. Call 1-866-571-8731.

I don't give out this number on websites.

received text spam