I think there's a feature on her phone that she can use to block calls from certain phone numbers. Its going to be *__ -- not sure of the numbers. Call whomever she uses for her telephone service and ask this question. That might be the easiest fix. You can probably block emails from them as well by marking the sender as "junk" and to have emails from that sender blocked by her email service.
Answered on Apr 08th, 2016 at 11:11 AM