everything worked as expected. We are up and running now!
Just another question, I now created an organization account so I can invite my client to see the output from my devices without tapping into my billing plans and personal account details, but unfortunately I was only able to transfer one card from my personal account to the organization account.
When I try to do it with my second card, I get the following error message.
Since you can only have one developer plan per account you have to change the plan for that SIM to something else before moving it to the other organization. If you click on the SIM you can move it to something else like the basic Pay-As-You-Go plan.