Bladder cancer

Was on earlier mum.is 90 with bladder cancer hasn't eaten or drank all day not really responding to me shes been sleeping all day basically rang 111 about 4ish then a  out of hours doctor rang just after 5 to say she will get a doctor to come out as mum is taking no fluids nothing I'm still waiting do you think if it gets to about 8.30 shall I ring 111 again and