The trade union Mandate has urged Dunnes Stores management to enter meaningful negotiations to prevent a possible strike.
Two thirds of the union's workers at Dunnes Stores voted for action in a long-running dispute over pay and the use of temporary contracts.
The union will decide next week what form the action will take.
Speaking on the Last Word with Matt Cooper, Assistant General Secretary of the Mandate Trade Union Gerry Light said staff are at the end of their tether:
