Dear @Mashoko,
Welcome to the Wefugees Community and thank you for your question.
As far as I know, it’s normal that the immigration office issued the electronic residence permit (the card) instead of putting a sticker in your passport (which was, if I’m not mistaken, the old procedure). Together with your valid passport and your residence permit card you should be able to travel!
Do you agree dear @mbeon-fardeen or @mbeon-Christine?
Keep in mind, though, that you still have to renew the residence permit card in case you renew your passport as the residence permit usually refers to your passport.
I hope this helps and don’t hesitate to get back to us with any further questions.
All the best,
Meike