Received a call telling me I needed to talk to them immediately. When I was transferred, I asked what account they were referring to and the man hung up.

Just got two calls this morning.  when I tried to call back they said it was not a working number.  Its spam..
I put on my reject list on my cell phone so no more of those calls..lol

Called and did not leave msg, googled it and got this site which confirms it was a scam call.  Called number back and it couldn't be connected.

I receive at least 1-2 calls every day from these numbers regarding credit card debt - blocked yet another number

each morning same call from a different state, I imagine they just spoof a number. When I see the out of state number I just move the number to auto reject.