If your employer has failed to investigate your grievance properly then the next step would be for you to submit a written appeal against the grievance outcome. If you are dissatisfied with the outcome of your grievance following an appeal and you have exhausted your employers internal processes, the next stage is to notify ACAS (Advisory, Conciliation and Arbitration Service) of your intention to lodge a claim with the employment tribunal. ACAS will then give you the opportunity to enter Early Conciliation to attempt to settle your dispute to avoid issuing a claim. This is a compulsory step. You should be aware that there are strict time limits for making a claim to the tribunal and we can provide expert advice on this.