Worried - my disabled mum has been cut off by DWP for travelling , need your advice

Worrieddaughter21

Hello
I have no idea if these forums work but I am so desperate I will try anything. 
My mother has physical and mental disabilities. I live and work in France. 
She had 2 nervous breakdowns during covid time and I was unable to see her regularly, she had no one to care for her, so we organised for her to come to stay with me for a month in France. It was such a trek to get her over here and on day 3 she had a fall and broke her leg. 
She was only supposed to be away from the UK for 4 weeks but ended up away much longer because she physically couldn't move. 
I dutifully contacted DWP to let them know and they cut mum off all of her ESA and rent rebate. They told her she would have to reapply. 
We want to fight this legally. I don't understand how a vulnerable disabled person is cut off from their benefits for having an accident??
Does anyone have any advice?
I have been in touch with the CAB, Mind.. no one can help. 

calcotti

This is not the answer you want but the law only allows ESA and HB to be paid for four weeks while abroad unless the reason for going is to obtain medical treatment.