In essence, a personal grievance is a way for an employee to claim that their employer has breached their employment agreement or acted unlawfully. This could involve situations like unfair dismissal, discrimination, or failure to pay the minimum wage.
The process typically involves raising the grievance with the employer directly, followed by mediation if an agreement can't be reached. If mediation fails, the Employment Relations Authority can become involved to hear the case and make a binding decision.
It is important to seek advice and support throughout the process. There are strict time limits for raising grievances and obligations when information is requested - early advice is the best bet.
Remember, it's always best to seek professional guidance for specific situations.