I was talking to another supplier, and he received a notice in Connexion, the Durable Medical Equipment, Prosthetics, Orthotics, and Supplies (DMEPOS) Competitive Bidding Program's secure portal, asking for supporting documentation for his bid amount for a lead item. Should I have received a notice, too?

Not all bidders are sent a Notice to Substantiate Your Bid(s) in Connexion. These notices were only sent when additional information was needed to support bidders' lead item bid amounts.