Called my land line and left a pre-recorded message on my answering machine. The female voice said something about "last chance" to lower credit card interest rates. They shouldn't be calling back because I didn't take advantage of my "last chance," but I am not holding my breath. I have PhoneTray on my computer to block future calls from this number.
Got a call from this number. Something about my credit rating being raised if I didn't take advantage of the offer. Hung up on them. Called back later, twice. It rang off of the hook both times, with no answer. Glad I checked here.
Got a call from this number with no message left. I called it back and it rang and rang with no voicemail picking up or recording. I am one of the Target/Chase hacked card holders that is part of that stolen card data, so it may be someone trying to access my info from that. I'm going to block the number.