Alex Hayman, Which? Managing Director of Public Markets, said:
“It’s important the regulator investigates the timetable chaos which heaped misery on passengers who faced hellish delays and cancellations, with dire knock-on effects for their everyday lives. We know that hundreds of passengers were left infuriated by the unclear or inaccurate information they received.
“If Govia Thameslink Railway and Northern are found to be in breach of their licence obligations, it is absolutely right that the regulator shows its teeth by taking enforcement action.”