support for dad

Hi dad got diagnosed in November last year stage 3 he had had a round of radiotherapy but that's all they are offering him they have drained a pint of liquid from his lungs av few wee k s ago and it appeared to come back very quickly was shocked by how much weight hes lost in acweek he looks awful is barely eating he's so week.   He wants to remain in his own house but he lives alone (mum passed away suddenly 4 years ago) we have no support in place as yet and I have no idea  where to rt. Macmillan nurses have not replied to any calls.  Anyoneany idea what suppory I can get and how to go about it. H es not eating but insusting on staying at home.   I dont knwcwhatvto do I feel his ddeterioration us oicking up s o eed a n d ge nay nit have long left