Star commands not working?

Tried *67 today and just got a fast busy. Checked here on the forum and found a list of star commands. Tried *30 and *22. Neither works (just get a quiet line for about 15 or 20 seconds then voice response says "goodbye".

Anyone else experiencing this or is it just me

Don't know if this is related but today when I called my son the call showed up as unknown. I haven't changed anything that I am aware of
My son didn't answer my call because he thought it was someone he didn't want to talk to.