I blocked this number this Morning yet they continue to call every 20 Minutes, 13 times so far Today my phone still rings once before going to the call blocker. they are worthless Scum.
Called I didn't pick up because they were not in my contact directory so I let voicemail take the call. They hung up without leaving a message. After reading everyones comments here, I've blocked them and now they get a 'number disconnected message'. It truly helps to get your number removed from robocalling list.