Meeting with an oncologist

Up here in in Scotland and my health board you are assigned a specialist nurse as part of your cancer treatment medical team, to be honest you are assigned a anwer machine number as no one is ever available to answer the phone. So I called Monday mornng left a message and waited a call back. This came late afternoon but i missed it as my phone is not glued to my hand particularly when I am home.
I called back but it went straight to answer machine no matter i thought they will try again the following morning except it never came so called in the afternokn left a message again and this time got the call back.
I asked why she had called back in the morning and shockingly she said they only call back once and if they miss you you need to start the whole process again.
Purpose of call was to find out why they had not sent the results I requested.