Same thing here - continued to call me once a day for the past few weeks... Just saw this post - called the number back and it allowed me to opt out of future calls... There is never anyone on the line when I take the phone call.
I love to keep these scammers on the phone as long as possible. I tell them I have all kinds of debt and then after about 15 minutes or so tehy will keep trying to get my info I will just start laughing at them and say you waste my time I'm gonna waste yours.