Hi Becky, I love my plants too so know how you feel.
I'm very dim but don't know how far 200mtrs is, I still have to have everything in feet and inches. I submitted my blue badge application over the phone. When she asked how far I could walk in mtrs I said I didn't know so she suggested a distance and put that! The amount of people who park in disabled places and appear to have no health problems makes me cross. I know they are given out for all sorts of problems but should not be denied to folk who are in real need.
I would prob. get onto the blue badge dep. again, tell them of your difficulty and ask their advive. I'm sure they will advise you who to ring, who knows you might even be able to appeal for the badge again.
Hope you get it sorted before the ban comes in. Zena x.