Thank you for the question. If you. have accepted an offer in full and final settlement, that is the end of the matter. However if you have a newer issue, as suggested then you could take a new claim in relation to this. I would still. advise going through the finical ombudsman in the first instance, however, if you are not in agreement with there findings or remedy, you could look at a small claims action to recover your losses or achieve compensation in this matter.
Prior to intimating small claim proceedings, you will require to send a letter to the respondent. It is a simple letter stating that if they do remedy the matter as you have outlined (in the same letter), you will take legal action against them. This is referred to as a. pre-action protocol letter. You can complete the forms for a claims action easily online. You will have to highlight what the issues are and tell them how much you are claiming for, to be honest the first are straight forward and self-explanatory. If you feel you can do this yourself then you don’t really need to hire a solicitor, but I will provide details for you in case you feel you want to. You will then receive a response to the claim and a court date. On the day (unless they offer a settlement) you will appear at the local court and basically provide your evidence and give you claim to the judge, and they will response. The judge will assess the merits of the claim and defence and make a judgement this should be relatively easy for you to prove so the respondent may well offer a settlement in the meantime.
I hope this information has helped. You can find a local solicitor who deals with this on the law society webpage which is here;
https://www.lawsoc-ni.org/solicitors (N. Ireland)
If you require any help moving forward on this matter in the future, please do feel free to come back to us and I would be more than happy to assist.