"Disappointed in service"

I do not usually complain but the service received or should I say not received today has been very disappointing! I did a patches consultation for my father after staying up till midnight to make sure he would be on the list for that day , he has 2 recent hospital admissions and we were concerned re his health again . I was informed he would get a call that day I rang at 4pm to see if he was still on the list the 1st call was cut off ? My second call was answered and the staff informed me that my 80 year old ill father was called on a mobile not his preferred method of contact when I found his phone it rang for 20 seconds as both my parents are elderly and deaf I am baffled why he was not contacted on Preferred method ? I asked for him to be added to the list for next day response No ! I understand the pressure of work in the NHS but Iam appalled at the service given to a generation of people that don't contact the surgery unless absolutely necessary!