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The letter to Sarah Messenger, the employers' secretary on the National Joint Council for Local Government Services, states: "In light of the failure to make us an NJC pay offer for 2014-15 and as a result of your suggestion that this year's pay offer will in any case be ‘pegged’ to the national minimum wage, I am writing to notify you that the Trade Union Side considers itself to be in formal dispute with you."
It is signed UNISON national secretary Heather Wakefield on behalf of the joint trade unions, which also include PSI affiliates GMB and Unite.
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