What help should my grandad be getting from social services?

My grandad is 79, disabled, suffers from dementia, epilepsy and stage 3 cancer. My nan is his full time carer, she is 76, also disabled with chronic back problems. They live in their own 2 bed semi, my nan wants to move to a bungalow but Grandad is refusing as he has lived their for 50 years and i agree that moving would be too much for him so they contacted social services to see if they could get any help with getting house adjusted. My nan asked about if she could have a carer for some help a few hours a week but they said no, she also asked about a stair lift and shower but they also said no and fitted rails at either side of stairs. That was late last year and so far this year he has fallen down the stairs 4 times, my nan has also fell once! He falls nearly everyday getting out of the bath and has a catheter fitted which my Nan has to deal with alone. He is having his kidney out on Thursday and my Nan has called my crying as she does not know how she will cope when he comes out of hospital (they say he will be in for 5-7 days). I try to be there as much as i can and go at least once a day but this isn't enough and with work and small children i don't have any extra time. They have no savings and low pensions but have both always worked full time so surely they are entitled to some sort of help?