More typical scumbags calling to try and phish & flimflam credit card numbers or anything else they can get to screw the ones silly enough to answer the pick up the phone...  They called last month a few times and are back sweeping the same numbers again.  Loaded them back into my Big Red Button call blocker which slammed them to scammer hell when they called again a hour or so later.
Don't waste your time asking to be "taken off the list" You have already added yourself to a traded among the scum bags "live phone line" list.  Putting them in a call blocker is the only way to assuage them - they don't give a hoot about any "Do Not Call" Lists and the telcos don't/won't do a thing to clean them off their networks - they are happy to keep the income flowing from the scum bags and the sad customers being abused via their collusion.