Got a call from this number telling me my credit card had account trouble...held on line waited and pressed 9 to speak to an operator. He took the phone and i advised him My number is on the do not call registry he hung up

Got a call from 407-000-4838 on my cellphone but didn't recognize the number and didn't answer. They left no voice mail. I didn't even think it was a real number due to the three zeros until I Googled it and saw it's from Florida.