Can a 'Non-Party' of an Arbitration Process get equal Privileges and Rights like a 'Party' as per the laws of the United States and its Constitution, when the Arbitrator in fact barred the 'Non-Party' to participate in the Arbitration proceedings any further?

QUESTIONS PRESENTED : a) Can a “Non-Party” of an Arbitration Process get equal Privileges and Rights like a “Party” as per the laws of the United States and its Constitution, when the Arbitrator in fact barred the “Non-Party” to participate in the Arbitration proceedings any further? b) Can my agreement of Personal Guaranty be de: fied, and a Judgement be imposed on a non-party, , without any fair trial as per the terms agreed in the Personal Guaranty Agreement? c) Can a Supplementary Agreement (here it is Per; sonal Guaranty Agreement) be valid in the absence or without the existence of the concerned Principal Agreement (Master Retailer Agreement) on the date the supplementary agreement was signed? ii .