The NSW Government confirmed to ABC News that they would not be offering refunds for train fares for the days in January when there were significant disruptions to the network.

Commuters will be offered a “fare-free day” after the dispute with the rail unions is resolved.

The Rail, Tram and Bus Union (RTBU) says the government should refund travellers their money for fares paid between January 13 and 17, claiming it was “unfairly blamed for the meltdown across the network.

The RTBU told ABC News If the government does not agree to their terms, trains will travel at 23 kilometres per hour under the speed limit in zones of 80 kph or above.

This comes after NSW Transport Minister Jo Haylen resigned after it was discovered she had used her ministerial car for a long lunch at a winery in the Hunter Valley, as well as other personal trips.

"In the midst of an ugly and tense bargaining dispute, the departure of the Transport Minister presents both a threat and an opportunity," the RTBU wrote in a statement to its members.

"A threat in that we don't know how a new Transport Minister will behave toward us and an opportunity if the government wants to clear its dirty laundry and give them a fresh start."