If you have applied for unemployment or disability benefits and the Employment Development Department (EDD) has denied you benefits, you have the right to appeal that decision.You must file an appeal in writing to EDD.For unemployment insurance benefits, the deadline for filing the appeal is 30 days from the mailing date of the notice of determination or overpayment.ou must file an appeal in writing to EDD. For unemployment insurance benefits, the deadline for filing the appeal is 30 days from the mailing date of the notice of determination or overpayment.