Made new agreement recently and 1470 no longer working - co-incidence?
From current Home Phone Features web pages
"Permanent Number Withhold (1470)
Keeps your number private - every time you make a call. Ask our customer care team to set it up for you (even if you're ex-directory). If you do want to leave your number, dial 1470 before you make the call."
After several hours phone and text today message via agent from manager - feature is unavailable and web site is not updated yet