(c) If the Respondent wishes to make any counterclaim then his Statement of Case shall include that counterclaim;

(d) Within 28 days of the receipt of the Respondent's Statement of Case and Counterclaim (if any) the Claimant may send to the arbitrator

and to the other party a further Statement of Case by way of Reply (and Defence to Counterclaim if any) but if no Reply is served within that time limit or such extended time limit as the arbitrator may allow the pleadings are deemed to be closed and if no Defence to Counterclaim is served then the Claimant will be debarred from serving a Defence to Counterclaim;

(e) Within 14 days of the receipt of a Statement of Case by way of Defence to Counterclaim (if any) the Respondent may send to the arbitrator and to the other party a further Statement of Case by way of Reply to Defence to Counterclaim and on the expiry of that time limit or such extended time limit as the arbitrator may allow or on the service of a Reply to Defence to Counterclaim if sooner pleadings are closed;

(f) When a Respondent or Claimant has been debarred from serving a Defence or Defence to Counterclaim under Article 2.4(b) or