Submit your evidence through the RTB’s online dispute-resolution portal, or use the alternative method stated in the correspondence about your case. Follow the deadline given by the RTB and provide clear, relevant documents such as the tenancy agreement, messages, photographs, receipts or payment records. Evidence should generally also be shared with the other party, unless the RTB tells you otherwise, so keep proof of what you sent and copies of everything. Check the latest guidance on RTB.ie, as the process can vary by dispute type and the outcome is decided on the facts of the individual case.