"Elderly relative left screaming in agony"

Uncle admitted to medical ward with blocked catheter. Uncle crying out in pain and collapsed on toilet unable to move buzzed for help nurse not responding.. Niece eventually shouted for help and someone assisted. Asked to see a doctor and was told that he could be waiting 6 hours to see one. Said that they wouldn't leave an animal in so much pain let alone a person. Had to tell staff to change catheter which was eventually done. Told staff that catheter keeps blocking and needed to be regularly checked. Rang hospital next morning to be told uncle had a peaceful night. Got a distraught call from neighbours who were visiting hospital next day to say that uncle was in agony again and no one helping him. Uncle got on phone pleading for help saying that he had been in agony throughout the night and no one had come to help him. After I told staff that I was making a formal complaint and going to papers with this they promptly changed attitude and moved him to aappropiate ward. Was told blood pressure was high then found out that was because they'd forgotten to give him his blood pressure tablet. Now looking for his community nurse notes.