Mc. just a FWIW, in order for RCCH to normal trading, it would need to file a Form 10 with the SEC and get a MM to sponsor them and submit to Finra a 15c-211. In order to file the Form 10, RCCH would need to have an Edgar account and upload the form, upon submission it is instantly available via www.sec.gov. The SEC does allow written submission of Form 10's.
As to the form 15c-211, there is no public accessible system to see if a MM has submitted one or not.
So there is no need to call your broker, just check the SEC website.