I answered and got a message about lowering rates on my credit card. I don't have one but played along. I asked which card and got a vague answer: MasterCard or Visa. Then I said, " You aren't calling from my bank are you?!" He hung up on me. Definitely a scam!!
Answered the call and it was an automated message stating that I could lower my interest on credit cards. There was no option to remove my number from the calling list, so I connected to a rep and requested to remove my number, at which point the rep hung up on me. Scammers.
Called left no message. Blocked. If these people are going to call leave a message, legit calls leave a message. Let people decide if they want to call back or not. Stop calling and hanging up.