Some social welfare recipients have received lower Illness Benefit Payments than they expected this week, the Department of Social Welfare has confirmed.
However it said that all customers had received payments "in line with the illness certificates presented".
It said it was examining the affected cases and hoped to have any payment issue resolved over the next week.
In the meantime the Department said that anyone in immediate financial need should contact the community welfare service at their local Intreo centre.
A number of people posted on Twitter in recent days about payment issues, with some saying that they had been unable to contact anyone via the Department's helpline.