Hi not sure if I am being unreasonable here so would like outside opinions. I have been off work for the last 4 months with depression and anxiety and I was suppose to have a meeting with my manager yesterday but I couldn't go because I've got a virus so my sister gave me our managers phone number and told me to text her and let her know that I couldn't make it so I did what I thought was the polite and right thing to do and let her know and got a rude message back telling me that it wasn't policy to text her it's not the first time she has been rude to me when I first went off sick she phoned me up to find out if I was going back to work and I got told that I was being selfish and letting the residents down by being off sick. My sister text her and explained that she had told me to text our manager to let her know that I was sick and she said it was fine she understood why is it ok for my sister to text her but am in the wrong for doing it.