Who called from 2033089831

Unwanted call

Unsolicited text message as follows:
"We Want to Thank You
Call us at 877830-6774

For your 100 Dollar Gift Card
Gift ID 510

Txt Stop to Remove"

Went straight to voice mail when I called.

I just got the same SMS, I am blocking the number.

they said i get a hundred dollar gift card and 120 dollar gas card and wanted a credit card number

Unsolicited text msg:
We wanted to say Thanks, call us at 877 830-6774 for your two 50 Dollar gift cards GiftID22 Txt stop to remove    3/17/2011 03:07:35.

I hate this stuff, won't answer them to stop for fear of confirming my number.