The trade union representing public servants in Tonga is threatening strike action in a week if the Government does not pay at least six percent cost of living adjustment.
The Public Service Association's secretary general, Mel Amanaki, claims that in discussions between it and the Cabinet it was agreed the Government would pay this amount.
But she says the Government later reneged, claiming a five percent adjustment made under the previous budget, has to be considered part of the six percent amount.
She says failure to meet the union's demand will lead to strike action.
Ms Amanaki says the PSA is also pushing for a substantial cost of living adjustment in next year's budget.