Who called from 4048916880

I have just received a phone call from AVG American Survey and I didn't answer it so they left a message saying that I won a $100 dollar Wal-Mart gift card. It says to press 1 now to speak to an agent. Just because, I called the number and there's no ring or anything. It just sits there.

Just received the call from this number and got hung up. WTF?

what the is this number? They me a message, I can't call it back due to no minutes. I just wanna know who number this is and what they want.

Don't call me and don't bother me.

Just got a call from this number. I answered, no one there.