I have a cellular TracFone and I do not answer unknown numbers. Someone called today and did not leave a message. My phone number is registered on the national Do Not Call List and I reported this call to them. This number has been added to my reject list! There are a few complaints listed on the "WhoCallsMe" website also.
AS USUAL, a pre-recorded message from CRIMINALS about reducing my credit and "lowering interest rate", received on my CELL phone. There is no "opt out" option, of course, since this is a criminal enterprise. I didn't answer, but of course the criminal scum left a voice mail, wasting my time. I too, am on the Do Not Call List and am reporting them immediately following this message.
WARNING--BEWARE!! These callers are B I G credit card criminals, known as the card service scammers! Under NO circumstances, give these lowlifes your credit card number, or you will regret it forever!