This is a scam they say you get free Walmart gift cards but then they want to charge up your credit card with "promotional offers" for you to get them. Do not give them your information if you tell them no they will just keep calling and calling
The area codes: 502 and 503 seem to call at the same times the 425 area code scam calls appear. No message left. Calls arrive evenings and week-ends as well as daytime. I never answer them.