Post Office supply chain workers in Leeds have forced bosses onto the back foot after two 24-hour walkouts.
The CWU union members are fighting plans to shut a distribution centre. Bosses had planned to close the site by the end of this month.
But after workers struck on 24 December and on Monday of last week, bosses postponed the closure until 5 April to negotiate with the CWU.
The closure could see some workers lose their jobs and others relocated. CWU assistant secretary Andy Furey said the union would “continue to robustly oppose this closure”.