"My dad's care in the hospital"

My Dad has vascular dementia due to many mini strokes. This has been documented many times but each time the hospital does not pay attention to this. My Dad is bed bound and confused. When he gets an infection he doesn't know who anyone is. Every time he has gone into hospital he has come home with no real diagnosis and pressure sores.  He did not have pressure sores until a hospital admission a few years ago to Nelson Court. He returns home where my mum makes sure these recover and then when he goes back in again we go through the same cycle.  We tell the hospital about the name he prefers to be known by. They ignore this and then wonder why he won't communicate with them. We tell them he struggles to eat and drink without help  they sometimes ignore this too. They give him in inappropriate pads given his incontinence. They make us feel as if we do not care about his wellbeing whereas the care he receives in hospital is inappropriate and substandard. They don't take into account his dementia and that he may need a visitor. My Dad got home yesterday and believes he has been to Manchester. 

When I contacted the hospital to ask that his dementia is recognised they were rude and I wanted to make a complaint about that. I have spent most of this week telling them what my Dad's name is whilst they label him wrongly and tell me that's what the records say. When I ask them to make a note they just ignore me. My Dad is shutting down bit by bit as is the nature of dementia. I genuinely cannot imagine how anyone would feel with this being done to their relative.