I assume that this is an informal maintenance agreement?
If so. I would explain to him that you will be going to the CMS directly. Rule of thumb is that on most benefits the NRP still contributes – though usually at a rate of £7 a week – so not oodles but better than nothing. He may then review his statement if not immediately make the claim as it wont be backdated further.
If he receives sick pay – full or SSP then you’ll still get payments though they will probably be reduced. Is the cause of his current inability to work a permanent ongoing disability or something that is likely to improve?
My initial suggestions are all practical – try to reduce your outgoing costs as much as possible – look at utility comparison sites etc, end subscriptions to Sky or similar, meal plan and only buy what’s on the plan – after using a comparison site to see which supermarket is cheapest etc. Reduce petrol costs etc by walking – shop around for insurances etc. Many people find second hand shops are a God send – I personally prefer sales.
Hope this helps.