Just read this on Twitter
Any communication between the Sussexs and the institution will be by the Law firm representing the Royal family.
Harry can no longer get through to his father, brother, not even their aides.
All communications is now via the palace lawyers.
twitter.com/royalinstablog/status/1612479339546775553?cn=ZmxleGlibGVfcmVjcw%3D%3D&refsrc=email