There are at least these 'Bromley Roads' in the TfL area
Bromley Road (E17)
Bromley Road (N17)
Bromley Road (SE6)
Bromley Road Chislehurst
Bromley Road Beckenham
Does Bromley Road SE BND mean SE as in postal district or South-East Bound as in direction of travel?
It may be clutching at straws, but the location is meant to readily identify the location to the registered keeper, who may well not have been the driver on the day in question.
You need to telephone TfL and ask for them to send you the video (the evidence) and place the PCN on hold whilst they do so, and do watch deadlines.