An RTB determination order is legally binding unless it is successfully challenged through the appropriate High Court process within the relevant time limit. If the losing party does not comply, the other party can generally apply to the District Court to have the order enforced. The court may make further directions, such as requiring payment or another action, but the result depends on the circumstances and evidence. Check the RTB’s guidance on enforcement, and consider getting advice from a solicitor if the order is being ignored.