They called but I didn't answer in time. I returned their call and it immediately gave me an option to be put on a Do Not Call List. Recommend calling them back and doing the same.
Shades of 'Pavlov's dogs'!! Congratulations on passing the test. You did exactly what the criminal calling you wanted you to do. They called. You called back. Confirmed your number as real and live. Your number will now be sold on a sheet of numbers for between $5. and $7. Well done! Look at the money the criminals make for little to no investment.
Easy fix, just report this number to your phone company, have it blocked, *poof* like magic, they'll never call you again. "I'm Barack Obama, and I approve this message".