The only solution that works is to keep your phone turned off & turn it on only for out-going calls, then disable it again. For routine communication use email & social media
These calls need to stop. I can't look at my phone at work sometimes up to 8 hours. For the past two weeks I get these calls several times a day. When I call back nothing happens ever. One time I called back it asked me to push 2 if I wanted to be taken off the list and that did nothing.