Received call 05-30-17, 2:07p; no message.

Called around 8:40am.  I did not answer because I didn't recognize the number.  No message was left.

I could not find much online besides this on another site: "Female caller telling me I had won a free $100 Visa gift card, provided I gave them personal information & an $11.95 processing fee via credit card."

I presume it is a fresh number that some con artists started robo-calling from for their little gift card/phishing scam.  Do not even answer it if they call you again.  They are just trying to piece together people's identities to steal from them.  Same as the hundreds of other phone scammers out there.

I am blocking the number.  I suggest you do the same.

Call twice didn't leave a message

Called, left no voicemail.  Call back, voice recording allowed me to be placed on do not call list.

Their is no one on the line. This is a business get these call all day long. Sick of it