Received a call from this number. Seemed to be a real person, but I couldn't make out anything she was saying before the call was dropped.

Just called and didn't answer. Caller I'd said "final notice". We don't owe any one money so knew it was a scam. Besides what company that you owed money to would have a caller id that said"final notice"? It is a scare tactic to get you to answer the phone. I blocked the number and added it to the other 400 phone number scams we have received over the last two years.

Same thing. Display said "final notice". Ignored it. Also sure it is a scam. Seems somewhat recent as Tom's report is 14 Aug and nothing else found on the net.

Its "Card Services".   Notorious scammers trying to get your credit card information.  I had it as well.  They call every day if not twice.  They tell you to F--- off if you ask to be removed from their list then hang up.   I've filed more than 100 complaints against them in the first 2 months of 2014 with the Do Not Call Registry.  They ignore them as "there is nothing they can do".

People are being bombarded with scam telephone calls that promise to help lower their credit card interest rates. The recorded calls purport to come from nondescript entities such as “Card Services,” “Cardholder Services,” etc. Due to the nondescript identification of the caller, some people may believe that the calls are from their credit card company. When people return the calls or press their keypad as directed, however, they may be contacting debt assistance scam artists or identity theft crime rings.

Caller ID says "FINAL NOTICE".  Rings once, no message left.  Number is now blocked on my phone.