2 calls from Robert Popiotek no message

Received 2 calls at my house but it was on my mom's line asking for me wouldn't leave a message. I looked at the web and there are several other saying the same, it's a scam

received call from this number on my cellphone, no voicemail left.

Caller ID says Robert Popiolek, as stated by others. Has been calling for past several days and nothing has been said until today. Male asked for my husband and then stated 'they' handled our Visa and MasterCard accts.  When I asked which acct they were calling abt ;) , he said 'any of them', then quickly said would call another time, and hung up.  DON'T give them any info!  By the way, we're on the do not call list...