Postal workers at the Royal Mail depot at Mead Street in South Bristol are due to strike on December 10 in a dispute over working conditions.
Royal Mail has issued this response.
We are urging staff based at Mead Street to continue working as normal and to allow the nationally agreed process for resolving issues of concern to continue.
We are disappointed they have decided to take industrial action on a peak day in the run-up to Christmas, which is our busiest period as we deliver customers' Christmas items.
Royal Mail is determined to do all it can to maintain service to customers on December 10 with help from Royal Mail colleagues throughout the south west and the wider country, to deliver letters, cards and parcels.
Customers can ring the Royal Mail's Customer Service helpline on 08457 740 740 or check its website.
More top news
A new film celebrating life in Somerset will have its premiere in Taunton tonight. It was shot on film which was developed using cider.
A charity which was set up in memory of 17 year-old Lloyd Fouracre - who was killed on a night out - is celebrating its 10th anniversary.
A Royal Navy sailor from Gloucestershire is one of four men who's been accused of raping a woman in Canada after an ice hockey tournament.