Kinda. I tried activating my new SIM card through the horrible web interface (oh o2 germany never change) an the interface kept bugging out. After a few tries I tried to find the hotline number through the chatbot and lo and behold the chatbot actually scanned my account and deducted that I was trying to activate my new sim card. After a few questions, the chatbot succeeded with what should be easily possible through the web interface.