Express Scripts unwanted robo-call.
There is NO WAY to opt out of these calls from Express Scripts, short of changing your phone number.
There is NO WAY to talk to a human. EVER.
Even registering online to receive email reminders WILL NOT STOP THESE RIDICULOUS ROBO-CALLS FROM EXPRESS SCRIPTS!!!
So I block these calls on my phone.

If you can't talk to a human and you can't opt out, then this qualifies as a PRANK CALL.