here is my Streptocarpella. It is different to yours in leaf, however this doesn't really make a difference since I don't know which species mine is, anyway. ;-)
Still think your plant is a Streptocarpella, too.
Click the image for an enlarged view.
mark Antrim, Northern Ire United Kingdom (Zone 8b)
Wow Mark, you are fast! :-)
I found that the angle depends on the tilt of the flower stalk. The more upright ones have a definite 90* angle, these here are a bit less angled, the stalks almost hang down. This one is the very last of the season, winter has just arrived!
I think you can safely label your plant.