There is no separate Galway procedure: residential tenancy disputes are handled nationally by the Residential Tenancies Board (RTB). You can apply through the RTB’s website, usually choosing mediation first or requesting adjudication, and should provide the tenancy agreement, messages, rent records, photographs and other relevant evidence. If necessary, an adjudication decision can generally be appealed to an RTB tribunal, subject to the applicable rules and deadlines. The outcome depends on the facts and evidence in your case, so check the current guidance and fees on the official RTB website or speak to a solicitor if the dispute is complex.