Cash collectors at Coventry City Council struck between Christmas and the New Year over single status. The Unison union members in the exchequer banking took action as part of an ongoing wave of strikes that have hit the council.
Members of the Unison, T&G and GMB unions have been working to rule since a pay package was imposed on them 18 months ago.
About 1,500 workers lost up to £9,000 a year under the package, while 2,000 gained.
The local authority now wants to open offices for more days around bank holidays.
Richard Harty from the Unison union said, “On the surface, employees do get an improved annual leave package.
“But it means the public holidays become part of the annual leave, and it means the employer could insist that employees turn up for work for those days.”
Teaching assistants and parking attendants in Coventry are now balloting for strike action.