Trade union Mandate has written to Dunnes Stores owners Margaret Heffernan and Frank Dunne seeking their intervention, after the retailer's management refused to respond to a letter from the union.
Mandate had sought to engage with Dunnes over a number of issues, including job security, fair pay, and the right to trade union representation.
Mandate Assistant General Secretary Gerry Light said he was “disappointed in the failure of the company to respond within the required 21 days which is part of the agreed procedures between the company and the union.”
He added that Dunnes competitors have access to full trade union representation, and Dunnes workers are merely seeking the same right for themselves.
Light added: “It is regrettable that an Irish retail business of the size and reputation of Dunnes Stores have behaved in this way and are refusing to engage on core workplace issues that affect the living standards of their loyal workers who have helped to make the company as successful as it is today.”