User Activity

About 1 year ago with a software update I suddenly started getting voicemail both recording and in a text form.  How do I get one or the other, I don’t need or want both methods?   
I had set up a service appointment the other day for home internet issue. The day before the appointment I get a text saying that a tech could come earlier and if I wanted to take this earlier appointment to reply with the number 1. I tried repeatedl...