The State Claims Agency has been criticised over its decision to appeal a High Court judgement involving terminally ill Limerick woman Ruth Morrissey.
The decision has left Ms Morrissey "terribly upset", according to her solicitors.
Ruth and her husband were awarded €2.1 million after they successfully sued the HSE and two labs in relation to smear tests undertaken in 2009 and 2012.
The State Claims Agency says the appeal does not relate to the damages.
Rather, it focuses on "a number of important legal points that may have significant implications."
But Cian O'Carroll - who acts for the Morrissey family - says the Government needs to fully explain its reasoning for the appeal:
"The Taoiseach also said at the time that he was happy that the Morrissey's had been vindicated"
"Simon Harris subsequently used the word vindicated also, and that nothing should disturb that indication for her."
"I've written a few times to them to try and understand better what he's doing and to ask him why he's saying one thing in public and doing another thing in private with the Morriseys, but I haven't received a reply yet."