Tell them you have no phone. It seems to disarm people. You're not telling that you refuse their request, and getting into a power struggle. Then ask them if that means you can't get a vaccination or whatever. This has worked every time so far for me.
It doesn't get easier. It probably would if more of us did it, though.
I got the vaccine not problem. With the vaccine came a sheet of paper requesting I sign up for vsafe which is a program unrelated to those giving the vaccine. It is probably useful to sign up, so I tried, but there wasn't an option of no phone, or at least not until it was too late.
It doesn't get easier. It probably would if more of us did it, though.