How Can I get 24/7 Care?

he has been in care home for almost 2 years as he is unable to look after himself. He wanted 2 bedroom place so that he could have live in care. he was assessed and now he has been offered the 2 bedroom flat. great. but, a new assessment has been done and the social worker cannot see the need for a live in carer. nothing has changed with my brothers health, he is not going to get better. he is now 60. what is my next step in getting a live in carer, even though the decision is not final.