The comedian, and her partner Kevin Bolden, were asked to move from their
seats when the woman got onto the train and wanted to put a pram into the
wheelchair space.
For example, ChrisB reproduces a quote, above. This quote seems to imply that the pram lady wanted: 1. Seats which weren't hers to take. 2. A disabled space to put her pram in. One of the many reports that I have read on this episode states that the couple were asked to move from the seats that they were occupying as they had been reserved for the lady (with the pram) joining later in the journey. Who knows .............?
I'll leave GWR▸ (Great Western Railway) to sort this one out - other than saying that a large dollop of common sense might have been the best solution from the outset. Too many high horses around maybe.