If Southern Rail gave a guarantee across the table on the role of conductors, rather than simply claiming there is one, there would be no need for a dispute, according to the general secretary of the RMT union.
The dispute between Southern Rail and the RMT Union over the role of conductors continues, with three days of industrial action beginning today.
General secretary of the RMT union Mick Cash told Julia Hartley-Brewer: "Today Charles Horton [CEO of Govia Thameslink Railway] who wasn't at the meeting [with union staff] last week, who I had never met officially across the table to discuss the issue, has apparently said there is a guarantee.
"I'm at a loss to understand why, if he can say it today, his representatives weren't prepared to say it to us last Thursday."
Listen to the full interview to find out more