It might be passive aggressive but give the patient a CD with password protected PDF and do not give the password. I bet you never get a call, because no one is really looking at it.
Another option is to tell the pharmacy to have the patient call them so the can discuss other options to get their supplies. They may decide that mail order really isn't that bad.
If they want to "block" you, it can go two ways. I suspect they need you more than you need them.
