the last time i checked the UK home office were planning regulations to do away with appeals for visitor visas and other categories, cant remember which ones, by now i think they are in place hence you cant appeal on a visitor visa.
one of the reasons that might have led to your help being denied a visa is that she might have been considered to be an 'unintending' immigrant, very common reason for UK visa denial.
just travel without her.
'One headache for famous medieval holy people was that someone might murder you to acquire your body parts for the relics trade'