RE: IR response.11 Jan 2021 17:10
Not sure why they haven't responded, maybe they are getting few requests, rightly so.
I don't think its to do with the investigation, it has nothing to do with earnings date, all listed companies should be able to manage accounting dates, its very basic management.
To be honest most companies know about earnings 6-9 months in advance of earnings publication date, however they only disclose on publication date, I am sure definitely know the results at least 1 quarter in advance.