Postal workers have announced details of their second 24-hour strike in a week in an ongoing row over Royal Mail's modernisation plans.
The Communication Workers Union (CWU) said that the latest industrial action would take place on Thursday July 12th at 19:00 BST until the same time on Friday.
But the union's deputy general secretary Dave Ward insists Royal Mail chair Allan Leighton has the "personal opportunity" to avoid further strikes by returning to "meaningful negotiations" himself.
"If he again is dismissive of his employees then there will be further strike action," Mr Ward said.
"Over 95 per cent of the workforce took part in the strike action last Friday; it shows the extent of the overwhelming support of the workforce to achieve both a decent pay rise and an agreed approach to automation and major change.
"This problem will not go away Royal Mail is in denial if they think otherwise and it is in Allan Leighton's hands to take the workforce forward with him."
The union is against the proposed modernisation of Royal Mail as it feels the plan could lead to up to 40,000 layoffs.
Royal Mail contends that reform is needed to deal with competition after the postal services sector was opened up to competition last year.
It claims that modernisation is the only way to improve pay and provide better customer service.
In response to the latest strike action a Royal Mail spokesman said: "Royal Mail is deeply disappointed that the union has again decided to take strike action that will cause more disruption for customers.
"Further strike action will achieve nothing. The union is saying nothing new and is simply ignoring the challenge confronting everyone in Royal Mail which is the absolute need to modernise as all our major our rivals have already done to reduce our costs in order to ensure we can compete successfully in an increasingly tough market. Strike action only makes it even tougher for Royal Mail to secure its future and continue to provide great quality of service for its customers."