The language of operation is usually dictated by which country's server you download it from (can be set on your account page) and I don't see a dedicated one for Ireland. I do, however, see Ireland listed in the drop-down menu for Mobile Support by phone here: Services and Support for Home and Office - does that not work for you?
If not try calling Customer Service, explain the difficulty and ask them to have Technical Support call you. They are open 24/7: 0160 155 80
Thanks for responding. The link you sent directs me to support by country but I need to change this as a setting so my home country is Ireland. I've tried to change the address in the Account page but that doesn't seem to fix it. Is there email, telephone or chat support available for this product?
Did you try that phone number? The only other means of support are the ones you see in that link.
If that phone number can't help connect you Chat support is available, just use the UK country choice. I don't recommend email support as it is slow.