Nomorobo set up and verified. No calls blocked

Please help. My Nomorobo is set up and verified by Nomorobo.  Everything is in order.  They have called to day it is enabled.  But it is NOT working.  Cox refuses all responsibility/.  I have to contact Nomorobo. I have done that 3 times. They say they will get back to me.  They havent. Everything is done correctly and that is verified by both  Cox and Nomorobo.  I am getting all my calls....10 just today.  I am at my wit’s end.  Please help.