Hi @bmoehlecke, welcome to our Community! I suspect your number can be converted to the PrePaid SIM card you had requested after a month's notice. This is often only possible after one month. That's why it hasn't been transferred yet. Is the 2FA with your number set to SMS and also for your own number? Can you reboot your device to see if you receive the SMS then?
I would like to take a look at your subscription to see if everything is set correctly. However, I am still missing the last 4 digits of your bank account number in your profile. I also see that the date of birth does not match what is mentioned under the number in our system. Can you mention the correct data in your profile? Then I can check with you after that!