Saving your number on a lady's phone is neediness. It never works. Even a lady asking for your number instead of giving hers doesn't work too.
A good-bad guy should never be the one to save his number on a lady's phone or give his number to her without getting hers.
On this forum, we have never taught anyone to save their numbers on a lady's phone — it's neediness. Only celebrities or extremely rich and handsome guys can do it and it will work.
Putting your number in her phone makes you appear cheap. No lady wants to date a guy that appears needy or cheap, except you're a celebrity. Don't try it again.