It appears this woman (middle aged black lady) is active again as I had an encounter with her early Friday evening just under the railway bridge near Catford station. She was extremely distressed, asked me for money for formula milk, told me her baby had died the day before and exposed one of her breasts to me to 'prove' she wasn't lying. All rather contradictory. She also told me she'd been driven to prostitution, had been hit by a man and that she was suicidal.
I mentioned her to a community officer I saw on the street half an hour later who is aware of this lady and encouraged me to call 101 to report it which I did. If anyone else encounters her if you report it straight away (unlike me) then there is more chance she can be tracked down and helped.