They are claiming to be a prize giveaway service; if you answer the call, you get entered into a $100 daily drawing. They say every quarter someone will get $1K. They give away ipods etc. How to stop future calls. Call the number, press 5 and she will say "are you sure you want to cancel?" then press 2 to complete. Personally I don't believe them. There was an offer for a discount prescription card and perhaps that is how they found me. Is that common reason? Did you also sign up for a walgreens discount card?