I don't have data but more and more seem to be turning voice only. Some US-based airlines come to mind, and one of the banks I deal with. It's fun when they ask for my "16 to 20 digit client number"
Mine just started introducing an ad before they get to the main menu.
Also, they repeat things several times during the interaction. i.e. the phone number I just called.
“Do you want to repeat that or go to the main menu?”
“Main menu.”
“You want to go to the main menu, is that right?”
It’s not my pronunciation, it does that every time.
Bot time is considered cheap, and therefore so is the user’s time. The time for the transaction has doubled over the last five years, as they add more repeats, information, and now, ads.