Can someone from O2 help me with porting of my number from o2 to other carrier?

I have a prepaid sim from o2 but now I want to take m number with me to a new carrier. I can’t find a way to port out of O2. Can someone from O2 help me with porting of my number from o2 to other carrier?

Edit o2_Antje: Moved from Mobilfunk to English Community / 18.01.2024