Called twice and left no message. I don't answer calls if I don't know the number because it's always spam! Adding this number to my long list of blocked calls.
SPAM. They called 2 different numbers of mine within about a half hour. Since almost no one has both of those numbers since I use them for different reasons, I called back and got a recording that "the survey you were being called for has ended". Which is commonly what people report when calling back spam numbers.