The best organization to contact about this would be FINRA. They regulate the broker/dealers and set the requirements for when it needs to be covered. Since we’re not a regulator we don’t know which brokers are and why the shares aren’t being delivered. The number for FINRA is 203-375-9609.
Best regards,
Ed McCann Issuer Services Pink Sheets LLC 304 Hudson St., 2nd Floor New York, NY 10013 edward@pinksheets.com T. 212-896-4420 F. 212-652-5920