Under the bilateral agreements between the United Kingdom and Ireland, periods of insurable employment in the UK may be used to help satisfy the contribution conditions for Illness Benefit if a person is not entitled by using their Irish record only. This means the department can take periods of employment in the UK into account when determining entitlement to Illness Benefit. However, in order to do so, a person must have last worked in Ireland and paid PRSI at the appropriate class i.e. Class A, E, H or P.
The person concerned was most recently in insurable employment in the UK and, as such, their claim is proper to the UK. Their claim details have been sent to our EU Records section who will, in turn, forward them to the relevant UK authorities.
I trust this clarifies the position for you.