The arbitrator shall not resign after accepting the task unless there are serious reasons therefor as decided on by the Authority based upon an application submitted by the arbitrator. Otherwise, parties may resort to the courts for compensation. It is not permitted to dismiss the arbitrator without the approval of all the parties. If the arbitrator is unable to execute his task, or does not perform it or has stopped performing it in a way that may lead to unjustified delay in the arbitration procedures, the Authority may terminate his appointment in response to an application submitted by one of the parties to the arbitration setting out the reasons.