Robocall with female recorded voice babbling about lower interest rates on your credit card. Got the identical same call from a different area code and phone number a few days ago. I just keep blocking the numbers, not much else you can do.
FBI (DITU - Data Interception Technology Unit) and NSA (TAO - Tailored Access Operations) are using Robo-calls and Spam e-mails to harass anyone who has been placed on a watch-list. I can attest to this from personal experience. Many of these calls will be received when you are sleeping, or in the middle of another phone call. All brought to you by the National Security Racketeering Network and paid for with your tax dollars.
Not only that, they've obviously broken into your kitchen and replaced the tinfoil you use to line your hat with inferior-grade product that can't block their mind control rays! Better get out and buy yourself some military-grade tinfoil ASAP!