"Failure to call for flu jab"

On enquiring why my elderly husband is never called for a flu jab I was told that he had not given the Moir Medical Centre his mobile phone number and had not given permission for texts. What if he doesn't have or use a mobile phone? Surely as the Practice has his address and landline there should have been a letter sent or call made. In fact is this not a requirement under the Enhanced Service? Failure to make contact is unacceptable.