They call with a bogus number and can't block them either.  I have told them many times to please take me off your list and  they constantly call my home on a daily basis.  I tried blocking them but I can't the prefix of the number is unblockable and system will not let me.  I took it down to the police station and filed a report for the investigations team.  I also reported them to the do not call registry. 1-888-382-1222