There is no basis for talks or other intervention in the Luas dispute, the company which runs the service said today.
Following a meeting with SIPTU today, Transdev says the union's expectations remain in excess of what was proposed at the WRC and subsequently rejected.
The company said it entered the discussions with a view to exploring the basis for the union rejection of a deal worked out at the Workplace Relations Commission.
It also wanted to share the financial challenges the company is facing after the five days of strike action since the proposal was rejected.
However, there has been no breakthrough in the dispute, which will see further industrial action this month and next.
SIPTU says drivers have been told that their wages may be deducted in a bid to recoup loses sustained by Transdev as a result of recent strikes.
The union also said that Transdev has also indicated they it may take civil cases against workers for breach of contract.