How long?

Stacie • 21 and have a beautiful boy named Freddie born 13/09/2016
How long do I wait for my midwife to call me today before I call them. I was promise I would be called today and nothing and I have work at 5pm so if she calls then I won't be around and she only works Thursday's! I want a call today as I was promised one would 3pm be too early to call?